missing in https://lab.nexedi.com/nexedi/erp5-capago/merge_requests/30

Backport nexedi/erp5!799

/reviewed-on https://lab.nexedi.com/nexedi/erp5-capago/merge_requests/30

https://microsoft.github.io/monaco-editor/ as an ERP5 source code editor.

Backport nexedi/erp5!687

/reviewed-on https://lab.nexedi.com/nexedi/erp5-capago/merge_requests/31

Just set indentation rules for now

Because typescript is a subset of javascript, running typescript
compiler on javascript files can already report several issues.

https://www.typescriptlang.org/docs/handbook/type-checking-javascript-files.html

This is triggered by using "Format document" from context menu.

Include prettier 1.14.0 Copyright 2017-2018 James Long
https://github.com/prettier/prettier/

So that we can edit web pages & web scripts with monaco

So that javascript editor provides hints for code using these libraries.

Some pointers for type scripts definitions:
https://www.typescriptlang.org/docs/handbook/declaration-files/introduction.html
https://definitelytyped.org/

In the previous approach, several "useless" request were still made
during edition.

https://microsoft.github.io/monaco-editor/ as an ERP5 source code editor

this commit is only a build of the vendor code.

It was built using https://lab.nexedi.com/jerome/monaco-editor-erp5/ at
revision 9d7f8b5 and uploaded to ERP5 following this procedure:

First enable webdav by adding in zope conf:
```
<webdav-source-server>
  address 127.0.0.1:12200
  force-connection-close off
</webdav-source-server>
```

This was built and uploaded to ERP5 with:
```bash
git clone https://lab.nexedi.com/jerome/monaco-editor-erp5.git/
cd monaco-editor-erp5
npm
npm run build
lftp http://login:pwd@127.0.0.1:12200/erp5/portal_skins/erp5_monaco_editor/monaco-editor/ -e 'mput dist/*'
```

instead of building HTML in python, it's cleaner and prevent problems when attachments names are HTML entities.

because storing as document depends on erp5_ingestion & erp5_dms

So that conversion is done by a zope activity node and not on a front
node.

And specifically, Domains (more portal types may be added to the relation
string field widget as needed).
Predicates get expanded to the list of documents they match.

backport of nexedi/erp5@7a708aab

Note: I had to change this commit a bit, it did not apply because our
erp5 is a bit old.

/reviewed-on https://lab.nexedi.com/nexedi/erp5-capago/merge_requests/29

/reviewed-on https://lab.nexedi.com/nexedi/erp5-capago/merge_requests/27

/reviewed-on https://lab.nexedi.com/nexedi/erp5-capago/merge_requests/26

backport nexedi/erp5!694

/reviewed-on https://lab.nexedi.com/nexedi/erp5-capago/merge_requests/25

See 4bb5d32e

Do not rely on DateTime.strftime which does fails on dates <= 1900.
This simple case does not need all the features of strftime and can be
implemented inline.

It currently fails with such ValueError:
```
year=101 is before 1900; the datetime strftime() methods require year >= 1900
```