Pydevmgr-core

- cleanup, removing of unused functions and classes

- Add GenConf typing to allow loading string as content of a config file
- io.load_config can now handle '/file/path.yml[a.b.c]'
- Add conparser to build parser in pydantic model

- The default fget and fset of NodeAlias1 is returning the value, as it should be !

- added the path function
- NodeAlias and DataLink are now using the path function natively
- add the handling of flag 'cfgfile' and 'cfgfile_path' for all Base configuration.
A file can be now loaded on the fly inside a configuration payload
e.g.
type: Motor
cfgfile: tins/motor.yml
cfgfile_pat: motor
Will load the given cfgfile and extract the motor1 configuration

The 0.4 version is I think the one forward to a stable version. Feedback are needed.
Many under the whode changes since v0.3. v0.3 ideas has been droped.