Fix: Fixing License issue in MVVM pattern (#1701)

* Fixing License issue in MVVM pattern

* Updating LICENSE.md

* Updating pom.xml

* License header update to MVVM module only.

* Updating pom and removing gpl txt

* Adding gpl txt file

Co-authored-by: Jinisha <Jinisha@LAPTOP-VG38PNMC.fios-router.home>

LICENSE.md

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2014-2021 Ilkka Seppälä
+Copyright © 2014-2021 Ilkka Seppälä
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -19,3 +19,6 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
+
+Module Model-view-viewmodel is using ZK framework
+ZK framework is licensed under LGPL and the license can be found at lgpl-3.0.txt