EZP-21562: Added API & SPI files for split repos

- Readme.md
- composer.json
- LICENSE
- Added "replace" for the subrepositories to composer.json
Fix EZP-22128 - Copyright still in 2013
EZP-21191: RichText field type initial implementation
EZP-21817: update non-translatable fields instead of copying
EZP-22103: remove deprecated dependencies
EZP-22103: use field name generator to generate field name
EZP-22103: added optional parameter valueData
EZP-22103: fixed phpdoc param description
EZP-22103: added Criterion Value base class
EZP-22103: implemented MapLocation Criterion Value
EZP-22103: implemented MapLocationDistance search Criterion
EZP-22103: implemented MapLocation sort clause target
EZP-22103: implemented MapLocationDistance sort clause
EZP-22103: implemented GeoLocation field value mapper
EZP-22103: enable indexing of ezgmaplocation fields
EZP-22103: Solr Storage: implemented MapLocationDistance criterion visitor
EZP-22103: Solr Storage: implemented MapLocationDistance sort clause visitor
EZP-22103: implemented integration tests
Fixed: typo
EZP-22103: fixed CS