Validate different tx types

[dabasov]

validate transactions, now if we change tx type we can cause panic

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x30 pc=0x7f76ca]

goroutine 625 [running]:
github.com/gagarinchain/network/blockchain/state.(*Snapshot).Put(0xc0004a7180, 0x80892b9cbe850ca6, 0xde19cef82cf8d3db, 0xc029e8f312, 0x0)
/app/blockchain/state/snapshot.go:71 +0x3a
github.com/gagarinchain/network/blockchain/state.(*Record).Update(0xc0004a7240, 0x80892b9cbe850ca6, 0xde19cef82cf8d3db, 0x29e8f312, 0x0, 0xc00037de01, 0xc0000c6f18)
/app/blockchain/state/record.go:117 +0x2fc
github.com/gagarinchain/network/blockchain/state.(*Record).ApplyTransaction(0xc0004a7240, 0xc000232dc0, 0x0, 0x0)
/app/blockchain/state/record.go:295 +0x1e8
github.com/gagarinchain/network/blockchain.(*Blockchain).collectTransactions(0xc000288480, 0xc0004a7240, 0xc000138ce0)
/app/blockchain/blockchain.go:635 +0x324
github.com/gagarinchain/network/blockchain.(*Blockchain).newBlock(0xc000288480, 0xc0001c3e00, 0xc000383680, 0xc0001c1740, 0x13, 0x20, 0xc000077601, 0x4)
/app/blockchain/blockchain.go:596 +0xa8b
github.com/gagarinchain/network/blockchain.(*Blockchain).NewBlock(...)
/app/blockchain/blockchain.go:583
github.com/gagarinchain/network/hotstuff.(*Protocol).OnPropose(0xc0002883f0, 0xeaf120, 0xc00006d860)
/app/hotstuff/protocol.go:363 +0x321
github.com/gagarinchain/network/hotstuff.(*StaticPacer).FireEvent(0xc000200160, 0x0, 0x0, 0x4)
/app/hotstuff/pacer.go:299 +0xb53
github.com/gagarinchain/network/hotstuff.(*Protocol).OnReceiveVote(0xc0002883f0, 0xeaf0e0, 0xc000038030, 0xc0003903a0, 0x0, 0x0)
/app/hotstuff/protocol.go:309 +0x5b6
github.com/gagarinchain/network/hotstuff.(*Protocol).handleMessage(0xc0002883f0, 0xeaf0e0, 0xc000038030, 0xc0005381c0, 0x1, 0x1)
/app/hotstuff/protocol.go:444 +0x5a4
github.com/gagarinchain/network/hotstuff.(*StaticPacer).Run(0xc000200160, 0xeaf0e0, 0xc000038030, 0xc000078120, 0xc000078180)
/app/hotstuff/pacer.go:221 +0x845
created by main.(*Context).Bootstrap
/app/run/initializer.go:243 +0x90b