T3216

All alias related utilities are being consolidated in aliasUtils, hence moving getAliasRegistrationFee and it's helper function getAliasByteSize (only used in getAliasRegistrationFee).

Associated unit tests migrated accordingly.

grep -r getAliasRegistrationFee src/ and ensure references are to aliasUtils.js
grep -r getAliasByteSize src/ and ensure references are to aliasUtils.js
npm test
set alias flag to true in Ticker.js
npm start
navigate to Alias page, input an alias and ensure the size/price preview is correct