[CI] Add reusable workflows

This commit converts workflows to reusable workflows.
Also, it reduces the number of Actions entries started by a single PR/push.

Author: KFilipek

.github/workflows/basic.yml

@@ -1,6 +1,6 @@
 name: BasicBuilds
 
-on: [push, pull_request, workflow_call]
+on: workflow_call
 
 env:
   BUILD_DIR : "${{github.workspace}}/build/"

.github/workflows/benchmarks.yml

@@ -1,6 +1,6 @@
 name: Benchmarks
 
-on: [push, pull_request, workflow_call]
+on: workflow_call
 
 jobs:
   ubuntu-build:

.github/workflows/spellcheck.yml

@@ -1,6 +1,6 @@
 name: SpellCheck
 
-on: [push, pull_request, workflow_call]
+on: workflow_call
 
 jobs:
     build:

.github/workflows/starter.yml

@@ -0,0 +1,15 @@
+name: Workflow starter
+
+on: [push, pull_request]
+
+jobs:
+    CodeQL:
+        uses: oneapi-src/unified-memory-framework/.github/workflows/codeql.yml@main
+    Spellcheck:
+        uses: oneapi-src/unified-memory-framework/.github/workflows/spellcheck.yml@main
+    Build:
+        needs: [CodeQL, Spellcheck]
+        uses: oneapi-src/unified-memory-framework/.github/workflows/build.yml@main
+    Benchmark:
+        needs: [Build]
+        uses: oneapi-src/unified-memory-framework/.github/workflows/benchmark.yml@main