Add default cmake macros for cherry project

cmake/standard.cmake

+include(FindPkgConfig)
+
+macro(pkg_dependency DEP_VAR VARIABLE)
+    pkg_check_modules(${VARIABLE}PKG ${ARGN} ${VARIABLE})
+    add_definitions(${${VARIABLE}PKG_CFLAGS})
+    include_directories(${${VARIABLE}PKG_INCLUDE_DIRS})
+    link_directories(${${VARIABLE}PKG_LIBRARY_DIRS})
+    list(APPEND ${DEP_VAR} ${${VARIABLE}PKG_LIBRARIES})
+endmacro()
+
+