feat: add drawing manager tools

[psrednicki]

Drawing Tools requested in #70
@dandical You can start work form this PR.

TODO:

• Inject Datasource and Layers that Drawing Tools create by itself
• Add unit tests

Still contains error:

TypeError: Cannot read property 'children' of undefined
    at _updateMode (atlas-drawing.min.js:formatted:1)
    at atlas-drawing.min.js:formatted:1
    at Map.forEach (<anonymous>)
    at e.Oo._invokeEvent (atlas-drawing.min.js:formatted:1)
    at e.setOptions (atlas-drawing.min.js:formatted:1)
    at HTMLButtonElement.<anonymous> (atlas-drawing.min.js:formatted:1)```

[ambientlight]

@psrednicki: Do you need any help on this one here?

[psrednicki]

@psrednicki: Do you need any help on this one here?

Still dont have time to take care about it. @ambientlight If you want you can try do it or try with another one module

[ambientlight]

@psrednicki: got it, thanks, will open another PR for it then