feat(Chain): add new method waitFOrTxConfirm

[nduchak]

Add new option { confirm: 3 } to all of high lvl SDK API. Add tests. Adjust docs

[nduchak]

Resolve #851

[codecov]

Codecov Report

Merging #874 into develop will increase coverage by 12.94%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##           develop     #874       +/-   ##
============================================
+ Coverage    79.74%   92.69%   +12.94%     
============================================
  Files           57       57               
  Lines         2834     2834               
============================================
+ Hits          2260     2627      +367     
+ Misses         574      207      -367

Impacted Files	Coverage Δ
es/ae/aepp.js	100% <100%> (ø)	⬆️
es/account/index.js	100% <100%> (ø)	⬆️
es/utils/aepp-wallet-communication/rpc/aepp-rpc.js	100% <100%> (ø)	⬆️
es/ae/wallet.js	100% <100%> (ø)	⬆️
es/node-pool/index.js	100% <100%> (ø)	⬆️
es/utils/json-big.js	81.25% <0%> (+0.48%)	⬆️
es/contract/compiler.js	100% <0%> (+2.32%)	⬆️
es/utils/crypto.js	82.05% <0%> (+5.12%)	⬆️
es/tx/tx.js	100% <0%> (+14.45%)	⬆️
es/channel/internal.js	95.31% <0%> (+77.34%)	⬆️
... and 2 more

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