roombanker api document

this is sdk for roombanker smartgateway.  

Turorial:

1. edit the example make/arch.mk, enter the correct corsstool env  
2. cd example  
3. execute make  
4. transfer the example/build/test to test board run it  

Version List:

Version V1.0.0:

1. desc :   
	this is only debug version.

Version V1.0.1:

1. desc : 
	add set_attr/get_attr/zcl_cmd/rpt_attr/rpt_cmd通用操作函数

Version V1.0.2:

description : 
1. add Z-Wave interfaces  which can be used to commnunicate with Z-Wave sensors. 
2. add some command line functions which shows how to use API functions to send data to ZigBee/Zwave IoT devices.