add gpio

hc

2023-12-04 f33f61bdb7ca6d5ebe7a78f9d8694b91360279ac

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# From http://code.google.com/p/fbterm/downloads/detail?name=fbterm-1.7.0.tar.gz&can=2&q=
sha1    dc7b7ff29212c1551f35bf7a50967454d3b8c67c    fbterm-1.7.0.tar.gz