HPCC-23073 Add target localinstall (mainly for vscode-cmake-tools)

Signed-off-by: Jake Smith <jake.smith@lexisnexisrisk.com>

CMakeLists.txt

@@ -508,4 +508,8 @@ configure_file(
 add_custom_target(uninstall
     COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
 
+add_custom_target(localinstall
+	COMMAND $(MAKE) install
+    )
+
 include(CPack)