Split bcc/__init__.py into multiple files

The subclasses and some of the imports inside __init__.py were getting
overly large, so start to split some of the functionality into different
files.
Signed-off-by: Brenden Blanco <bblanco@plumgrid.com>

src/python/MANIFEST

 # file GENERATED by distutils, do NOT edit
 setup.py
 bcc/__init__.py
+bcc/table.py
+bcc/libbcc.py

src/python/bcc/libbcc.py

+# Copyright 2015 PLUMgrid
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import ctypes as ct
+
+lib = ct.CDLL("libbcc.so.0")
+
+# keep in sync with bpf_common.h
+lib.bpf_module_create_b.restype = ct.c_void_p
+lib.bpf_module_create_b.argtypes = [ct.c_char_p, ct.c_char_p, ct.c_uint]
+lib.bpf_module_create_c.restype = ct.c_void_p
+lib.bpf_module_create_c.argtypes = [ct.c_char_p, ct.c_uint,
+        ct.POINTER(ct.c_char_p), ct.c_int]
+lib.bpf_module_create_c_from_string.restype = ct.c_void_p
+lib.bpf_module_create_c_from_string.argtypes = [ct.c_char_p, ct.c_uint,
+        ct.POINTER(ct.c_char_p), ct.c_int]
+lib.bpf_module_destroy.restype = None
+lib.bpf_module_destroy.argtypes = [ct.c_void_p]
+lib.bpf_module_license.restype = ct.c_char_p
+lib.bpf_module_license.argtypes = [ct.c_void_p]
+lib.bpf_module_kern_version.restype = ct.c_uint
+lib.bpf_module_kern_version.argtypes = [ct.c_void_p]
+lib.bpf_num_functions.restype = ct.c_ulonglong
+lib.bpf_num_functions.argtypes = [ct.c_void_p]
+lib.bpf_function_name.restype = ct.c_char_p
+lib.bpf_function_name.argtypes = [ct.c_void_p, ct.c_ulonglong]
+lib.bpf_function_start.restype = ct.c_void_p
+lib.bpf_function_start.argtypes = [ct.c_void_p, ct.c_char_p]
+lib.bpf_function_size.restype = ct.c_size_t
+lib.bpf_function_size.argtypes = [ct.c_void_p, ct.c_char_p]
+lib.bpf_table_id.restype = ct.c_ulonglong
+lib.bpf_table_id.argtypes = [ct.c_void_p, ct.c_char_p]
+lib.bpf_table_fd.restype = ct.c_int
+lib.bpf_table_fd.argtypes = [ct.c_void_p, ct.c_char_p]
+lib.bpf_table_type_id.restype = ct.c_int
+lib.bpf_table_type_id.argtypes = [ct.c_void_p, ct.c_ulonglong]
+lib.bpf_table_key_desc.restype = ct.c_char_p
+lib.bpf_table_key_desc.argtypes = [ct.c_void_p, ct.c_char_p]
+lib.bpf_table_leaf_desc.restype = ct.c_char_p
+lib.bpf_table_leaf_desc.argtypes = [ct.c_void_p, ct.c_char_p]
+lib.bpf_table_key_snprintf.restype = ct.c_int
+lib.bpf_table_key_snprintf.argtypes = [ct.c_void_p, ct.c_ulonglong,
+        ct.c_char_p, ct.c_ulonglong, ct.c_void_p]
+lib.bpf_table_leaf_snprintf.restype = ct.c_int
+lib.bpf_table_leaf_snprintf.argtypes = [ct.c_void_p, ct.c_ulonglong,
+        ct.c_char_p, ct.c_ulonglong, ct.c_void_p]
+lib.bpf_table_key_sscanf.restype = ct.c_int
+lib.bpf_table_key_sscanf.argtypes = [ct.c_void_p, ct.c_ulonglong,
+        ct.c_char_p, ct.c_void_p]
+lib.bpf_table_leaf_sscanf.restype = ct.c_int
+lib.bpf_table_leaf_sscanf.argtypes = [ct.c_void_p, ct.c_ulonglong,
+        ct.c_char_p, ct.c_void_p]
+
+# keep in sync with libbpf.h
+lib.bpf_get_next_key.restype = ct.c_int
+lib.bpf_get_next_key.argtypes = [ct.c_int, ct.c_void_p, ct.c_void_p]
+lib.bpf_lookup_elem.restype = ct.c_int
+lib.bpf_lookup_elem.argtypes = [ct.c_int, ct.c_void_p, ct.c_void_p]
+lib.bpf_update_elem.restype = ct.c_int
+lib.bpf_update_elem.argtypes = [ct.c_int, ct.c_void_p, ct.c_void_p,
+        ct.c_ulonglong]
+lib.bpf_delete_elem.restype = ct.c_int
+lib.bpf_delete_elem.argtypes = [ct.c_int, ct.c_void_p]
+lib.bpf_open_raw_sock.restype = ct.c_int
+lib.bpf_open_raw_sock.argtypes = [ct.c_char_p]
+lib.bpf_attach_socket.restype = ct.c_int
+lib.bpf_attach_socket.argtypes = [ct.c_int, ct.c_int]
+lib.bpf_prog_load.restype = ct.c_int
+lib.bpf_prog_load.argtypes = [ct.c_int, ct.c_void_p, ct.c_size_t,
+        ct.c_char_p, ct.c_uint, ct.c_char_p, ct.c_uint]
+lib.bpf_attach_kprobe.restype = ct.c_void_p
+_CB_TYPE = ct.CFUNCTYPE(None, ct.py_object, ct.c_int,
+        ct.c_ulonglong, ct.POINTER(ct.c_ulonglong))
+_RAW_CB_TYPE = ct.CFUNCTYPE(None, ct.py_object, ct.c_void_p, ct.c_int)
+lib.bpf_attach_kprobe.argtypes = [ct.c_int, ct.c_char_p, ct.c_char_p, ct.c_int,
+        ct.c_int, ct.c_int, _CB_TYPE, ct.py_object]
+lib.bpf_detach_kprobe.restype = ct.c_int
+lib.bpf_detach_kprobe.argtypes = [ct.c_char_p]
+lib.bpf_attach_uprobe.restype = ct.c_void_p
+lib.bpf_attach_uprobe.argtypes = [ct.c_int, ct.c_char_p, ct.c_char_p, ct.c_int,
+        ct.c_int, ct.c_int, _CB_TYPE, ct.py_object]
+lib.bpf_detach_uprobe.restype = ct.c_int
+lib.bpf_detach_uprobe.argtypes = [ct.c_char_p]
+lib.bpf_open_perf_buffer.restype = ct.c_void_p
+lib.bpf_open_perf_buffer.argtypes = [_RAW_CB_TYPE, ct.py_object, ct.c_int, ct.c_int]
+lib.perf_reader_poll.restype = ct.c_int
+lib.perf_reader_poll.argtypes = [ct.c_int, ct.POINTER(ct.c_void_p), ct.c_int]
+lib.perf_reader_free.restype = None
+lib.perf_reader_free.argtypes = [ct.c_void_p]
+lib.perf_reader_fd.restype = int
+lib.perf_reader_fd.argtypes = [ct.c_void_p]