Add function to calculate checksum address

[ddoktorski]

Closes #1197

Introduced changes

• Function to calculate checksum address
• Function to validate if an address is its checksum address

Implementation in other SDKs:

• starknet.js
• starknet-jvm
• starknet.swift

Tests were taken mostly from ContractAddressCalculatorTest in starknet-jvm.

• This PR contains breaking changes

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (d35a04a) 98.05% compared to head (87094a0) 98.06%.

Additional details and impacted files

@@             Coverage Diff              @@
##           development    #1215   +/-   ##
============================================
  Coverage        98.05%   98.06%           
============================================
  Files               90       90           
  Lines             4741     4755   +14     
============================================
+ Hits              4649     4663   +14     
  Misses              92       92           

Files	Coverage Δ
starknet_py/hash/address.py	100.00% <100.00%> (ø)
starknet_py/hash/utils.py	100.00% <100.00%> (ø)

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[tomek0123456789]

LGTM! 💯