coverage.cmake: Added general target for collecting coverage counters for whole project (#12652)

cmake/coverage.cmake

@@ -84,6 +84,11 @@ ie_coverage_extract(INPUT "openvino" OUTPUT "core"
 ie_coverage_genhtml(INFO_FILE "core"
                     PREFIX "${OV_COVERAGE_BASE_DIRECTORY}")
 
+ie_coverage_extract(INPUT "openvino" OUTPUT "openvino_all"
+                    PATTERNS "${OV_COVERAGE_BASE_DIRECTORY}/src/*" "${OV_COVERAGE_BASE_DIRECTORY}/docs/template_plugin/*")
+ie_coverage_genhtml(INFO_FILE "openvino_all"
+                    PREFIX "${OV_COVERAGE_BASE_DIRECTORY}")
+
 if(ENABLE_OV_ONNX_FRONTEND)
     ie_coverage_extract(INPUT "openvino" OUTPUT "onnx"
         PATTERNS "${OV_COVERAGE_BASE_DIRECTORY}/src/frontends/onnx/*"