Support GenServer.ex & Supervisor.ex

Carbon copy from upstream, and adapted to gen_server.erl

Signed-off-by: Peter M <[email protected]>

Author: petermm

CHANGELOG.md

@@ -53,6 +53,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added `binary:replace/3`, `binary:replace/4`
 - Added `binary:match/2` and `binary:match/3`
 - Added `supervisor:which_children/1`
+- Added support for Elixir GenServer and Supervisor.
 
 ### Changed
 

libs/exavmlib/lib/CMakeLists.txt

@@ -41,12 +41,16 @@ set(ELIXIR_MODULES
     Enumerable.Range
     Exception
     Function
+    GenServer
     IO
     List
     Map
     MapSet
     Module
     Keyword
+    Supervisor
+    Supervisor.Default
+    Supervisor.Spec
     Kernel
     Process
     Protocol