Response file references quoted for targets with whitespace in the name

FrameworkSearchPathsGraphMapper now wraps the @$(SRCROOT)/Derived/FrameworkSearchPaths/<target>.resp token as “@$(SRCROOT)/…” before adding it to OTHER_CFLAGS and OTHER_LDFLAGS. Targets whose name contains whitespace (for example “Etsy Enterprise”) no longer have clang/ld split the response file token into pieces, so cached/precompiled framework search paths build correctly. Targets without whitespace get the same response-file behavior, just with the quoted token.