[Feature Request] Make AccountAddress formatting consistent

[areshand]

🚀 Feature Request

Motivation

there are a set of methods that convert accountaddress into multiple formats (1) with 0x prefix (2) without 0x prefix (3) without leading 0s. These are not compatible with each other now.
We should either

1. keep the account address and its string representation consistent,
2. or provide APIs that is used to read from string or convert account address to string.

Here are some places to be cleaned up.

• test_from_and_to_account_address
• remove auth_key from faucet
• mint param receiver (link), make sure we can have an API to consume both 0x or non 0x for user input.

Pitch

Describe the solution you'd like

Describe alternatives you've considered

Are you willing to open a pull request? (See CONTRIBUTING)

Additional context

[gregnazario]

move-language/move#54 to make the 0x inputs more consistent