Merge these three algorithms, ssvep/ssmvep/mi, in one decoder
Debug_64ch_Decoder is verified as high accuracy in all three algorithms. It is based on Liu Lei's version of the algorithm, but addresses some critical issues, such as package versions and GPU acceleration.
Debug_64ch_Decoder_Optimize is an updated version that fixes several issues and ensures compatibility with the host computer software. Debugs including at least the following aspects:
1. 8099作为server, 向多个client进行广播信息，client需要维护
2. status code 维护的问题
3. EEG data timeout 问题
4. UnboundLocalError: local variable 'data'referenced before assignment
