Merge pull request #1406 from KrahJohlito/cache #1951

Job	Run time
build-lang	34s
build-debug (iopcore_debug, :main)	1m 17s
build	1m 8s
build-debug (ingame_debug, :main)	1m 21s
build-variants (EXTRA_FEATURES=0, PADEMU=0)	1m 10s
build-debug (eesio_debug, :main)	1m 10s
build-debug (iopcore_ppctty_debug, :main)	1m 8s
build-debug (ingame_ppctty_debug, :main)	1m 6s
build-debug (DTL_T10000=1, :main)	1m 18s
build-variants (EXTRA_FEATURES=0, PADEMU=1)	1m 20s
build-variants (EXTRA_FEATURES=1, PADEMU=0)	1m 1s
build-variants (EXTRA_FEATURES=1, PADEMU=1)	1m 5s
merge-variants	7s
release	46s
merge-debug	7s
	14m 38s

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