* adding Vention Bin Icon file
* adding vention json file
* adding ventionTestnet json file
* adding testnet and mainnet chains json files
eip155-741.json is for testnet and eip155-77612 is for mainnet
* fixed shortname
renamed from vsc to vsct
* fixed chain name
from VSC to VSCT
* fixed shortname
from vsc to vscm
* delete bin file
file has error
* adding refreshed bin file of vnt
