Added a test of the snprintf function provided by the trio library

    * configure: Regenerated
    * configure.ac: Added trio-snprintf benchmark
    * src/trio-snprintf/Makefile.am: Makefile.am for trio-snprintf
    * src/trio-snprintf/Makefile.in: Regenerated
    * src/trio-snprintf/trio.c: Main library file for trio
    * src/trio-snprintf/trio.h: Main header for trio
    * src/trio-snprintf/trio_test.c: Benchmark test file for trio-
        snprintf
    * src/trio-snprintf/triodef.h: Part of trio library
    * src/trio-snprintf/triop.h: Part of trio library
    * src/trio-snprintf/triostr.c: Part of trio library
    * src/trio-snprintf/triostr.h: Part of trio library
Compilation fix for trio-snprintf, renamed benchmark to be trio-snprintf

    * src/trio-snprintf/Makefile.am: Renamed trio to trio-snprintf
    * src/trio-snprintf/Makefile.in: Regenerated
    * src/trio-snprintf/trio.c: Removed dependencies on trionan.{c,h}
Added trio-sscanf benchmark

    * configure: Regenerated
    * configure.ac: Added trio-sscanf benchmark
    * src/trio-sscanf/Makefile.am: Makefile.am for trio-sscanf
    * src/trio-sscanf/Makefile.in: Generated
    * src/trio-sscanf/trio.c: Library file for trio
    * src/trio-sscanf/trio.h: Library file for trio
    * src/trio-sscanf/trio_test.c: Benchmarking trio_sscanf
    * src/trio-sscanf/triodef.h: Library file for trio
    * src/trio-sscanf/triop.h: Library file for trio
    * src/trio-sscanf/triostr.c: Library file for trio
    * src/trio-sscanf/triostr.h: Library file for trio
Added stb_perlin benchmark

    * configure: Regenerated
    * configure.ac: Added stb_perlin benchmark
    * src/stb_perlin/Makefile.am: Makefile.am for stb_perlin
    * src/stb_perlin/Makefile.in: Generated
    * src/stb_perlin/stb_perlin.c: Benchmarking perlin noise generation