Refactor fileExists

Optimization isFileExists
Fix sql injection
bulkInsert is more efficient
Split query for SQL variables limit and remove unused method
Remove bulkInsert and optimize applyBatch (only >= Android M)
Optimization RemoveSharesInFolder
Begin refactor FileDataStorageManager
Finish refactor FileDataStorageManager
Extract method for applyBatch and updateFiles
Extract insertFile and DeleteFiles
Finish extract deleteFiles and applyBatch
Prepare remove duplication
Add old comment
Remove createContentValueForFile doublon
Export createContentValue for saveFile()
Fix when search file
Fix bug on first connect
Oups

Signed-off-by: Joris Bodin <joris.bodin@infomaniak.com>
Signed-off-by: tobiasKaminsky <tobias@kaminsky.me>