FIX: AosShellChannel was not known in main.c if shell was disabled.
Introduced a common aos_chconf.h file, which is included by each chconf.h.The smart build feature was deactivated since it caused issues with this new structure.
AosShellChannel now contains a pointer to a BaseAsynchronousChannel instead of a AosIOCHannel.Fixed an issue with AosIOStreams as well as AosShellStreams regarding multiple reading/writing from/to channels.
Major overhaul to the I/O functionality:
The SequentialStremMultiplexer (SSM) has been replaced by AosIOStream.The AosIOStream class acts like a BaseSequentialStream but consists of multiple AosIOChannels.Each AosIOChannel again implements a BaseAsynchronousChannel and thus is a derived class of BaseSequentialStream as well....
Modified aos_unittest.h/.c files to prevent unnecessary includes.
slightly enhanced some of the makefiles
removed module specific configurations from the makefiles
Major overhaul to AMiRo-OS version 2.0.0