Move files into /cmake/ instead of a cppbessot subdir of it

cmake/dbSchemaCheck.cmake

@@ -0,0 +1,26 @@
+include_guard(GLOBAL)
+
+include("${CMAKE_CURRENT_LIST_DIR}/dbGenerationCommon.cmake")
+
+function(cppbessot_add_db_check_schema_changes_target)
+  # Purpose: Register a manual target that reports git-tracked schema changes.
+  # Inputs:
+  #   - CPPBESSOT_WORKDIR: Schema root directory (relative or absolute).
+  #   - CPPBESSOT_GIT_EXECUTABLE: Git executable path (set by dependency check).
+  # Outputs:
+  #   - CMake target: `db_check_schema_changes` (EXCLUDE_FROM_ALL).
+  #   - Runtime warning/send-error from the script when changes are detected.
+  cppbessot_abs_path(_workdir "${CPPBESSOT_WORKDIR}")
+
+  add_custom_target(db_check_schema_changes
+    COMMAND "${CMAKE_COMMAND}"
+            -DCPPBESSOT_GIT_EXECUTABLE=${CPPBESSOT_GIT_EXECUTABLE}
+            -DCPPBESSOT_WORKDIR_ABS=${_workdir}
+            -DCPPBESSOT_PROJECT_SOURCE_DIR=${PROJECT_SOURCE_DIR}
+            -P "${CMAKE_CURRENT_LIST_DIR}/scripts/check_schema_changes.cmake"
+    COMMENT "Checking for schema changes under ${CPPBESSOT_WORKDIR}"
+    VERBATIM
+  )
+
+  set_target_properties(db_check_schema_changes PROPERTIES EXCLUDE_FROM_ALL TRUE)
+endfunction()