Bug fixes

• Added hook_help implementation
• Fixed bug where edit form for non-file based media entities was broken
• Changed label and description for the checkbox that controls if the replacement file overwrites the original or not to improve clarity

Bugfix for lastrun

#3094949 - Cache context does not account for menu items that are not currently active but are in the active trail
#3101886 - Can't remove extra data prior to uninstalling the module

Linkicon 8.x-1.0-dev, 2020-01-12
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- Issue #3035351 by gausarts, janes_p: Support FontAwesome 5+ and SVG with JS.
- Added a new option to support FontAwesome 5+: Additional icon classes
- Simplified settings at item level to match the container ones, basically
removing `linkicon_` prefixes as we are now confident no conflicts found with
parent link settings, e.g.: `linkicon_load` to `load`.
- Added LinkIconFormatterTrait to declutter the main formatter body.
- Added micro optimizations.

Link icon 7.x-1.0-dev, 2020-01-12
---------------------------------
- Issue #3035351 by gausarts, janes_p: Support FontAwesome 5+ and SVG with JS.
- Added a new option to support FontAwesome 5+: Additional icon classes
- Simplified settings at item level to match the container ones, basically
removing `linkicon_` prefixes as we are now confident no conflicts found with
parent link settings, e.g.: `linkicon_load` to `load`.
- Added micro optimizations.