Windows on ARM support + icon fixes (#129)

* Support for Windows on ARM (uses MSVC, but it's Windows 11 exclusive anyway so `¯\_(ツ)_/¯`)
* Adds the icon back for x86/x64 TDM-GCC builds
* Makes Linux compilation on ARM much faster
* added tests to every workflow

.github/workflows/freebsd.yml

@@ -51,7 +51,10 @@
            cd build 
            cmake .. 
            make 
-           ./umskt  # Execute the test here 
+           echo Test 1 - generating key
+           ./umskt -b 2C -c 365 -s 069420 -v
+           echo Test 2 - generating confid
+           ./umskt -i 253286028742154311079061239762245184619981623171292574
   
      - name: Move files to correct directory 
        run: |