Complete generalized C template with automatic versioning system

- Generalized build.sh script that works with any C project
- Dynamic project name detection from directory name
- Automatic version increment with each build following AUTOMATIC_VERSIONING guide
- Generic version header generation with build info and git metadata
- Template Makefile for C projects
- Example main.c demonstrating version API usage
- Proper .gitignore for auto-generated files
- Maintains compliance with workspace rules (single Makefile, build.sh usage)
- Fully functional template ready for new C projects

main.c

@@ -0,0 +1,33 @@
+/*
+ * C Template - Main Example File
+ * This is a basic template file to demonstrate the project structure
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+// Include version header if it exists (will be auto-generated by build.sh)
+#ifdef __has_include
+    #if __has_include("version.h")
+        #include "version.h"
+        #define HAS_VERSION
+    #endif
+#endif
+
+int main(void) {
+    printf("C Template Project\n");
+    printf("==================\n\n");
+    
+    #ifdef HAS_VERSION
+        printf("Version: %s\n", get_version());
+        printf("Full Version: %s\n", get_version_full());
+        printf("Build Info: %s\n", get_build_info());
+    #else
+        printf("Version: Not available (run ./build.sh to generate version info)\n");
+    #endif
+    
+    printf("\nThis is a template C project with automatic versioning.\n");
+    printf("Use ./build.sh to build the project and generate version information.\n");
+    
+    return 0;
+}