The `check_access_rule` call allow to remove the `editable` key from the
rendering context (which will lead to the display of the editor bar) if
an access rule prevents the edition of the ir.ui.view record. Also remove
it in case the user has no write access on the model (i.e. demo user).
* The compiled templates are cached per user, lang, inherit context values
* ir.ui.fields: attributes method return an dict, and record_to_html return only the content value of the field
* all rendered text use build_text and all attributes use build_attribute
* t-esc-options is removed and replace by format_value method
* AssetsBundle receive the list files and remains
- add or fix decorators on methods
- fix most compute methods (wrong dependencies)
- revert changes in `eval_context` of `ir.actions`
- various code simplifications and improvements
- migrate methods that were not
- ir_qweb: modify `QWebContext` to take an environment instead of `cr`, `uid`, `context`
- ir_qweb: convert `AssetsBundle` to use new API `env`
- ir_ui_view: use decorator `multi` on method `read_combined`
- ir_ui_view: ensure that method `render` is never called with an xml_id
- ir_ui_view: factor out part of the `ormcache` key of method `_read_template`
Simon Lejeune