Sync to camunda-modeler@3.3.2

[pinussilvestrus]

Using command

$ npm run sync -- -t v3.3.2

to sync to camunda-modeler@3.3.2 release

Closes #79
Closes #73

---

Tasks left

• fix ZeebePropertiesProvider errors
• fix lint errors
• verifiy Can't run on windows 10: "Not allowed to load local resource" #73 (worked as expected under Windows 10)

[pinussilvestrus]

Syncing worked straight forward. 🚀 Some things to be fixed (cf. description).

Don't know why GitHub shows this: "This branch cannot be rebased due to conflicts". It worked perfectly fine locally when rebasing/ merging into master.

[pinussilvestrus]

Should be ready to review now. No errors occur while testing (also in big processes). @menski @nikku feel free to test.