Added plugin for auto completing the Android Debug Bridge (adb).

Auto completing for adb supporting the following commands:
bugreport   -- return all information from the device that should be included in a bug report.
connect     -- connect to a device via TCP/IP Port 5555 is default.
devices     -- list all connected devices
disconnect  -- disconnect from a TCP/IP device. Port 5555 is default.
emu         -- run emulator console command
forward     -- forward socket connections
help        -- show the help message
install     -- push this package file to the device and install it
jdwp        -- list PIDs of processes hosting a JDWP transport
logcat      -- View device log
pull        -- copy file/dir from device
push        -- copy file/dir to device
shell       -- run remote shell interactively
sync        -- copy host->device only if changed (-l means list but dont copy)
uninstall   -- remove this app package from the device
version     -- show version num