add LIS302DL Acceleromter Driver
Merge remote-tracking branch 'remotes/zc/master'
add doxygen doc of ht1621b led and 93lc46a
Merge remote-tracking branch 'remotes/cedar/master'
add LIS302DL's doc to shared doc
Merge branch 'master' of https://github.com/coocox/cox
change description
add 24LC64 driver