V 0.2.2-beta - Bugfix and maintenance

[FEAT] Sort selected address records by plugin list
[FEAT] Add settings for ordering when displaying addresses related to page
[FEAT] Add TS lib, to easily display addresses related to current page
[TASK] Added doc for feature "display addresses related to page"
[FEAT] Add partial to show, when no search result was found
[FEAT] Declare and fulfill compliance with php strict types
 [FIX] Prevent "incorrect integer value" for birthday in MySQL strict mode
 [UPD] Refactor custom sql query to use query builder in function findRelatedToPage of address repository
 [UPD] Fix composer deprecation for package name alias / extension key
 [FIX] Correct requirement of TYPO3 core in composer.json to match all versions  8.7.x and  9.5.99
 [FIX] Prevent php error, when fetching record which is already resolved by declared parameter (7)
 [TASK] Replace $_EXTKEY in ext_localconf.php to be future save (breaks in TYPO3 10.x)
 [FIX] Allow storing links on standard pages, too, otherwise related address records cannot be stored
 [FIX] Prevent error, when orderBy config is empty/null (e.g. if plugin is just inserted)