Change name of config file
Add several members type peer
Add some function declarations for env init
Add allotTransTime function
This function intend to allot transmission time(trans_time) per piece to each peer. Peers' amount which have same trans_time won't exceed the rate in DRATE.
Rename ConfigFile to Config that in include/ and src/
Split peer-related functions which in EnvManger class to PeerManager class
Move Piece_t struct from Peer.h to Piece.h
Fixed error of variable names
Fix error
Add constructor for PeerManager class
Remove forward declaraction of PeerManager, then change to include its header file
Added header file for Peer Selection mechanism
Fix variable typo
Rename Main.h Main.cpp to BTTE.h BTTE.cpp
Move const variables to TransTime.h
Change member functions in Dice class to static
Define Peer_t *peers point to nullptr
Create include/algorithm src/algorithm dir and move header file and cpp file of PeerSelection in it
Move excludeSet, excludeNum function

Move these two functions from class Dice to PeerManager.cpp, and declare as static
Add new rand() and srand() for uniform distribution