[BCN] Add SPL Token program data

[leolambo]

Adds program data to token info endpoint /api/SOL/:network/token/:tokenAddress
e.g
{"name":"USDT","symbol":"USDT","decimals":6,"programType":"token","programAddress":"TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA"}