重写字符串匹配为 parser #326

Job	Run time
Run unit tests without uci support	43s
Run unit tests	49s
Run integration tests (-DUA2F_NO_CACHE=ON)	1m 26s
Run integration tests (-DUA2F_NO_CACHE=OFF)	1m 21s
Build aarch64_cortex-a53	10m 5s
Build aarch64_cortex-a72	8m 56s
Build aarch64_generic	9m 24s
Build arm_cortex-a7_neon-vfpv4	9m 36s
Build arm_cortex-a9_vfpv3-d16	8m 57s
Build arm_cortex-a15_neon-vfpv4	9m 4s
Build i386_pentium4	9m 48s
Build i386_pentium-mmx	9m 23s
Build mips_24kc	8m 57s
Build mipsel_24kc	9m 0s
Build powerpc_464fp	10m 11s
Build powerpc_8548	9m 3s
Build x86_64	9m 28s
	2h 6m 11s

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