Depends on openhab/openhab-core#2405.

This replaces the current section of the UI for managing
add-ons with a completely new "store-like" interface.
External data, like logos and detailed descriptions for
distribution add-ons are fetched from well-known locations
on the website or GitHub to provide a "store" look & feel.

The add-on store is orgnanized around 4 categories: bindings,
automation, UI, and others, with a separate search tab.
Each category is splitted into subsections. The availability
of these sections depend on the add-on services that are
registered. The sections currently supports add-ons provided
by the "karaf" & "marketplace" services, as provided by
openhab/openhab-core#2405.

Signed-off-by: Yannick Schaus <github@schaus.net>

Refactor info table to include it in the addon sheet.
Add author to info table

Signed-off-by: Yannick Schaus <github@schaus.net>

Signed-off-by: Yannick Schaus <github@schaus.net>

Rename labels in info table, swap colors
Add link to docs/forum when clicking on the big logo
on the details page.

Change compare logic when stats are present.

Signed-off-by: Yannick Schaus <github@schaus.net>

Signed-off-by: Yannick Schaus <github@schaus.net>

Add KAR archive content type label
Change label based on content type ("Install" or "Add")
Display dates in local time in info table
Route to store from the links in "choose binding" page
Add configure link for installed & configurable Karaf addons
Add warnings in addon sheet if unpublished or unverified
Display non-Karaf add-ons in all sections
Cleanups, cosmetics

Signed-off-by: Yannick Schaus <github@schaus.net>

Signed-off-by: Yannick Schaus <github@schaus.net>