EZP-23163: Implemented main ConfigParser.

It is passed to the ConfigurationProcessor and proxies all the config parsers.
EZP-23163: Changed AbstractParser to fit new prototype and moved its awesome tests to ContextualizerTest
EZP-2163: Common parser
EZP-23163: Content parser
EZP-23163: Image parser
EZP-23163: Languages parser
EZP-23163: Page parser
EZP-23163: Templates parser
EZP-23163: View parser
Updated matthiasnoback/SymfonyDependencyInjectionTest
EZP-23094: Changed configuration example for SiteAccess aware configuration base class
EZP-23163: Implemented SA aware semantic config for LegacyBundle

* view_layout
* module_layout