Google Drive init commit.
Added google drive sdk lib to module
Added google drive sdk lib to module
Configuration beans of Google Drive and test class.
Merge remote-tracking branch 'origin/cloudsync-googledrive' into cloudsync-googledrive

Conflicts:
	cloudsync-googledrive/pom.xml
Login implemented for Google Drive Cloud
login and logout
ListAllFiles implemented.
Merge remote-tracking branch 'origin/cloudsync-googledrive' into cloudsync-googledrive

Conflicts:
	cloudsync-googledrive/src/main/java/pl/agh/iet/i/toik/cloudsync/googledrive/GoogleDriveCloud.java
ListAllFiles implemented.
Download file implemented.
added GoogleDriveCloudCallable and listing files in task
Upload file implemented.
Merge remote-tracking branch 'origin/cloudsync-googledrive' into cloudsync-googledrive

Conflicts:
	cloudsync-googledrive/src/main/java/pl/agh/iet/i/toik/cloudsync/googledrive/GoogleDriveCloudMain.java
Remove file implemented.
Integration with root component.
wrap methods in GoogleDriveCloudCallable
logging
fix null-checking
Added start/end progress to tasks.