Tests were added

Author: IMC-GER

.github/issue_template.md

@@ -0,0 +1,17 @@
+### Expected Behavior
+
+
+### Actual Behavior
+
+
+### Steps to Reproduce the Problem
+
+  1.
+  1.
+  1.
+
+### Specifications
+
+  - phpbb version:
+  - recenttopics version:
+

.github/pull_request_template.md

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+### Pull Request rules for this phpBB Extension repository:
+
+* No PR will be accepted that would add a new language pack. (Corrections for the included language packs are welcome.)
+* No PR will be accepted that would add a new style template. (Corrections for prosilver are welcome.)
+* No PR will be accepted if the description is missing. This applies in particular to code changes.
+
+This message does not automatically destroy itself after reading and must be removed manually. ^^

.github/workflows/tests.yml

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+name: Tests
+
+on:
+  push:           # Run tests when commits are pushed to these branches in your repo,
+    branches:     # ... or remove this branches section to run tests on all your branches
+      - main      # Main production branch
+      - master    # Legacy or alternative main branch
+  
+  pull_request:   # Run tests when pull requests are made on these branches in your repo,
+    branches:     # ... or remove this branches section to run tests on all your branches
+      - main
+      - master
+
+jobs:
+  call-tests:
+    name: Extension tests
+    uses: phpbb-extensions/test-framework/.github/workflows/tests.yml@3.3.x
+    with:
+      EXTNAME: imcger/imgupload   # Your extension vendor/package name (required)
+      RUN_MYSQL_JOBS: 0
+      RUN_PGSQL_JOBS: 0
+      RUN_MSSQL_JOBS: 0
+      RUN_WINDOWS_JOBS: 0
+      PRIMARY_PHP_VERSION: '8.3'