Matrix: `Error Contents: No module named 'resources.lib.items.contentmanager'`

[shtrom]

Describe the bug
The Matrix branch no longer has resources.lib.items.contentmanager c92a7b1, but it is still referenced by other modules https://github.com/luizoti/script.library.integration.tool/blob/Matrix/resources/lib/__init__.py#L6

To Reproduce
Steps to reproduce the behavior:

1. Go to any plugin (in Matrix with the Matrix branch)
2. Click on 'Sync directly do library'
3. See error notification

Expected behavior

Selected entry is synced.

Desktop (please complete the following information):

• OS: LibreElec / RPi4
• Kodi Version 19.XX

Kodi log

2022-08-03 23:19:38.452 T:1902    ERROR <general>: EXCEPTION Thrown (PythonToCppException) : -->Python callback/script returned the following error<--
                                                    - NOTE: IGNORING THIS CAN LEAD TO MEMORY LEAKS!
                                                   Error Type: <class 'ModuleNotFoundError'>
                                                   Error Contents: No module named 'resources.lib.items.contentmanager'
                                                   Traceback (most recent call last):
                                                     File "/storage/.kodi/addons/script.library.integration.tool/context.py", line 16, in <module>
                                                       from resources.lib.database import Database
                                                     File "/storage/.kodi/addons/script.library.integration.tool/resources/lib/__init__.py", line 6, in <module>
                                                       from resources.lib.items.contentmanager import ContentManagerMovie, ContentManagerShow
                                                   ModuleNotFoundError: No module named 'resources.lib.items.contentmanager'
                                                   -->End of Python script error report<--

[luizoti]

I'm rewriting a lot of things in LIT, but I think, I think because it's been a while since I did that, the melies repository version is ok, I had to pause the work on lit for lack of time.