Add resource preferences for top level jgit project

Define resource preferences for the root directory of the jgit
repository imported as an Eclipse project. This allows to work on files
in the root folder inside Eclipse workspace.

Change-Id: I1885841fd612a646b0b9a31f001ced5ca112e90d
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

.settings/org.eclipse.core.resources.prefs

@@ -0,0 +1,2 @@
+eclipse.preferences.version=1
+encoding/<project>=UTF-8