Adding ETC network

[Moe Nick]

https://etc.blockscout.com/

• Write migration for adding tokens on the ETC network (list of tokens)
  Token List production:
  ETC, WETC and HEBE
  HEBE=0x88d8C3Dc6B5324f34E8Cf229a93E197048671abD
  WETC=0x82A618305706B14e7bcf2592D4B9324A366b6dAd

• Verify donations and transactions

• checking infura