Add colony events

[itspatch]

Pull request to complete #3

I added all the colony events from:

• https://github.com/JoinColony/colonyNetwork/blob/eac730ea4310907ad667490d889e3b9fbad4ef83/contracts/colony/ColonyDataTypes.sol#L22
• https://github.com/JoinColony/colonyNetwork/blob/eac730ea4310907ad667490d889e3b9fbad4ef83/contracts/colonyNetwork/ColonyNetworkDataTypes.sol#L21
• https://github.com/JoinColony/colonyNetwork/blob/e06f7815902801c6b9cc66da8dbfa2aee2b9f874/contracts/extensions/OneTxPayment.sol#L28
• https://github.com/JoinColony/colonyNetwork/blob/eac730ea4310907ad667490d889e3b9fbad4ef83/contracts/extensions/VotingReputation.sol#L32

I tried to categorize these events into more common or less common events. But I'm not sure that is the most helpful way to categorize these events.

I also had to increase the max line length in eslint because the event on line 123 has a long name followed by 5 parameters. This exceeded the default 84 character max. So I changed it to 90 character max.

[CLAassistant]

All committers have signed the CLA.

[chmanie]

Hey Pat!

Thank you so much for this, it's almost ready to be merged. I found a few minor things, please check the PR review.