clean up the docs folder, add in other various docs from the ssc svn that weren't here before

Docs/Devdocs/TextEntry.txt

@@ -0,0 +1,14 @@
+Code that uses ScreenTextEntry::TextEntry()
+-------------------------------------------
+RoomWheel.cpp
+ScreenEdit.cpp
+ScreenEditMenu.cpp
+ScreenNetRoom.cpp
+ScreenNetworkOptions.cpp
+ScreenOptionsCourseOverview.cpp
+ScreenOptionsManageCourses.cpp
+ScreenOptionsManageEditSteps.cpp
+ScreenOptionsManageProfiles.cpp
+ScreenOptionsReviewWorkout.cpp
+ScreenPackages.cpp
+ScreenTestFonts.cpp