[mikrotik] Mikrotik RouterOS Binding - Initial contribution (#10014)

* [mikrotik] Initial contribution
Build fix
Linter concerns fixed
Post-review updates
Apply suggestions from code review

Co-authored-by: Matthew Skinner <matt@pcmus.com>
[mikrotik] Byte channels UOM update
[mikrotik] UOM updates; minor improvements
[mikrotik] ThingTypes update

Signed-off-by: Oleg Vivtash <oleg@vivtash.net>

* [mikrotik] Version bump, bugfix (thanks @radokristof)

Signed-off-by: Oleg Vivtash <oleg@vivtash.net>

* [mikrotik] Raw uptime channel removed

Signed-off-by: Oleg Vivtash <oleg@vivtash.net>

* [mikrotik] Traces removed

Signed-off-by: Oleg Vivtash <oleg@vivtash.net>

* [mikrotik] Readme update

Signed-off-by: Oleg Vivtash <oleg@vivtash.net>

* [mikrotik] More Null checks

Signed-off-by: Oleg Vivtash <oleg@vivtash.net>

* [mikrotik] thing-types update

Signed-off-by: Oleg Vivtash <oleg@vivtash.net>

* [mikrotik] Units update

Signed-off-by: Oleg Vivtash <oleg@vivtash.net>

* [mikrotik] Readme signal update

Signed-off-by: Oleg Vivtash <oleg@vivtash.net>

* [mikrotik] Rate channels unit fix

Signed-off-by: Oleg Vivtash <oleg@vivtash.net>

* [mikrotik] Work on codestyle report and some compiler warnings

Signed-off-by: Oleg Vivtash <oleg@vivtash.net>

* [mikrotik] No more compiler warnings

Signed-off-by: Oleg Vivtash <oleg@vivtash.net>

* [mikrotik] Minus null check

Signed-off-by: Oleg Vivtash <oleg@vivtash.net>

Co-authored-by: Fabian Wolter <github@fabian-wolter.de>

Co-authored-by: Fabian Wolter <github@fabian-wolter.de>

CODEOWNERS

@@ -172,6 +172,7 @@
 /bundles/org.openhab.binding.mielecloud/ @BjoernLange
 /bundles/org.openhab.binding.mihome/ @pboos
 /bundles/org.openhab.binding.miio/ @marcelrv
+/bundles/org.openhab.binding.mikrotik/ @duhast
 /bundles/org.openhab.binding.milight/ @davidgraeff
 /bundles/org.openhab.binding.millheat/ @seime
 /bundles/org.openhab.binding.minecraft/ @ibaton