refactor(index): split index configuration, indexation and search in different modules

pom.xml

solidify-index-configuration/LICENSE.txt

solidify-index-configuration/pom.xml

...va/ch/unige/solidify/business/IndexFieldAliasService.java

...ige/solidify/controller/IndexConfigurationController.java

.../solidify/controller/index/IndexFieldAliasController.java

...olidify/controller/index/IndexSettingsReadController.java

...lidify/controller/index/IndexSettingsWriteController.java

.../settings/elasticsearch/ElasticsearchSettingsService.java

...dify/index/settings/inmemory/InMemorySettingsService.java

.../unige/solidify/repository/IndexFieldAliasRepository.java

solidify-index-controller/pom.xml

...ller/src/main/java/ch/unige/solidify/IndexCacheNames.java

.../ch/unige/solidify/index/ElasticsearchClientProvider.java

...ava/ch/unige/solidify/index/indexing/IndexingService.java

...fy/index/indexing/elasticsearch/ElasticsearchService.java

...fy/index/indexing/elasticsearch/IndexMetadataService.java

...index/indexing/inmemory/InMemoryIndexMetadataService.java

...ige/solidify/index/indexing/inmemory/InMemoryService.java

.../ch/unige/solidify/index/indexing/inmemory/IndexData.java