feat: improve build system and environment handling

* Enhance CMake configuration and build
  - Add OBJC_TAO_DEBUG_ENABLED option for debug builds
  - Update library linking with WHOLE_ARCHIVE support
  - Fix paths to use CMAKE_CURRENT_SOURCE_DIR consistently
  - Add config template for package installation

* Update VSCode integration
  - Use environment variables for include paths
  - Update debug configuration paths
  - Improve IntelliSense settings

* Environment and workflow improvements
  - Update GitHub Actions to use checkout@v4
  - Add workflow_dispatch support
  - Fix environment plugin handling
  - Update environment version to 5.3.0

* Other improvements
  - Enable include.h and include-private.h conditionals
  - Update trace environment variable name
  - Fix project version handling
  - Add mulle-clang-project dependency

Author: mulle-nat

.github/workflows/dockerfile-ci.yml

@@ -8,7 +8,7 @@ jobs:
    runs-on: ubuntu-latest
 
    steps:
-     - uses: actions/checkout@v3
+     - uses: actions/checkout@v4
        if: ${{ ! env.ACT }}
 
      - name: Build Docker image

.github/workflows/mulle-sde-ci.yml

@@ -27,11 +27,11 @@ jobs:
     - name: Dump Environment
       run:  env | sort
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - uses: mulle-sde/github-ci@v1
 
-    - uses: mulle-cc/github-ci@v4
+    - uses: mulle-cc/github-ci@v5
 
     - name: List extensions
       run: |

.mulle/etc/project/formula-info.sh

@@ -1,8 +1,8 @@
 cmake_minimum_required( VERSION 3.14)
 
-project( mulle-objc-developer NONE)
+project( mulle-objc-developer VERSION 0.27.0 LANGUAGES NONE)
 
-set( PROJECT_VERSION 0.26.1)
+set( PROJECT_VERSION 0.27.0)
 
 
 if( APPLE)