QAD::Map:

* add MapViewTileProviderBase - base class for tile server provider
 * migrate OSM to new class
 * add MapTiler provider
 * add offlineMode for MapView

CMakeLists.txt

@@ -4,7 +4,7 @@ cmake_policy(SET CMP0072 NEW) #  FindOpenGL prefers GLVND by default
 project(QAD)
 set(QAD_MAJOR    2)
 set(QAD_MINOR    32)
-set(QAD_REVISION 0)
+set(QAD_REVISION 1)
 set(QAD_SUFFIX   )
 set(QAD_COMPANY  SHS)
 set(QAD_DOMAIN   org.SHS)