fix(extensions) - initialize extension from factory

[fforbeck]

Proposed Changes

• The initialization of the extension should be done within the same transaction that creates the extension, that prevents malicious users from calling extension.initialize before it gets added to the DaoRegistry.sol
• All extension factories were updated to initialize the extensions, and the extensions were updated to allow the any function call to happen during the initialization phase
• Considering the initialize call with be triggered in the same tx that creates cloned extension it can't be called by another user.
• The initialize function reverts if called more than once
• Added more tests for Factories and DaoRegistry
• Reorganized DaoRegistry code, and updated the init function to save the dao payer at index 2 instead of 1. Index one will be used for the dao owner/creator
• Removed the extension.initialize call from registry
• Updated Managing adapter

[codecov]

Codecov Report

Merging #527 (02df6e7) into master (3256cd6) will increase coverage by 0.86%.
The diff coverage is 98.31%.

❗ Current head 02df6e7 differs from pull request most recent head d081068. Consider uploading reports for the commit d081068 to get more accurate results

@@            Coverage Diff             @@
##           master     #527      +/-   ##
==========================================
+ Coverage   84.72%   85.59%   +0.86%     
==========================================
  Files          52       52              
  Lines        1859     1867       +8     
  Branches      443      438       -5     
==========================================
+ Hits         1575     1598      +23     
+ Misses        284      269      -15     

Impacted Files	Coverage Δ
contracts/adapters/Managing.sol	100.00% <ø> (ø)
contracts/core/DaoRegistry.sol	97.83% <96.22%> (+8.05%)	⬆️
contracts/extensions/bank/Bank.sol	80.85% <100.00%> (ø)
contracts/extensions/bank/BankFactory.sol	100.00% <100.00%> (ø)
...racts/extensions/erc1155/ERC1155TokenExtension.sol	97.22% <100.00%> (-0.04%)	⬇️
...xtensions/erc1155/ERC1155TokenExtensionFactory.sol	100.00% <100.00%> (ø)
contracts/extensions/erc1271/ERC1271.sol	100.00% <100.00%> (ø)
contracts/extensions/erc1271/ERC1271Factory.sol	100.00% <100.00%> (ø)
contracts/extensions/executor/Executor.sol	100.00% <100.00%> (ø)
contracts/extensions/executor/ExecutorFactory.sol	100.00% <100.00%> (ø)
... and 7 more

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