Resolve "Update RPC mine() with ecomobicoin_jsonrpc"

Closes #116

New payload for Postman:

{
    "jsonrpc":"2.0",
    "method":"emc_mine",
    "params":[{"chainId":"0x9b5cb","input":"0x307830313564386562393030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303038373863316330303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303634343636326263303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030316565323466626131376237653139636331303831323931316466613861343338653061383161393933336638343361613562353238383939623864396532323162363439616530646630303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303036303030303030303030303030303030303030303030303030373433313331306530323662363962666336373663303031336531326131613131343131656563393030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303038333430303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030303030306634323430",
    "quantity":"0x10000","timestamp":"0x65563a06",
    "from":"0x2c7536e3605d9c16a7a3d7b1898e529396a65c23",
    "hash":"0x0000000000000000000000000000000000000000000000000000000000000000",
    "v": "0x136bb9","r":"0x23a3ae6f0bd571dc20aeae3d2561fc6d3d9d06448d391b1a5f90c02c6ebb8243","s":"0x1a1974e8d6d7239cfae99d99d4cbec08f856ceff16b3f8362c6fc6a95d0e35e4"}],
    "id":1
}

Also work with latest version testnet-injector of in cli branch