Module: InvertScrolling

[lipkau]

Features:

• [x] manifest contains link to documentation
• [x] module has an icon
• [x] module is documented in wiki
• [x] module shows relevant debug messages --> not applicable
• [x] module shows relevant notifications --> not applicable
• [x] scrolling is inverted in all scopes

[lipkau]

finished implementation with 23f4779f4e2ccdef8798b00c52e47aaecb519ba1