Update consensus-datastructures.md

[MicahZoltu]

• Adds Log
• Extracts Account
• Switches to using Bytes, Bytes32 and Bytes8 as appropriate (in Ethereum, the RLP encoding of Bytes32 is different from the RLP encoding of UInt256)
• Added some missing .rootHash to the patriciaTries
• Corrects spelling of patriciaTree to patriciaTrie

[ChrisChinchilla]

Thanks for the contribution @MicahZoltu just out of interest what are you referencing for these changes?

[MicahZoltu]

Code that I have written to interop with Ethereum. I originally tried using these docs but needed to ask around for additional information from client devs in order to actually build out my integrations, and I wanted to get that information I learned along the way encoded so future developers don't have to struggle like I did. 😄 If you think something is wrong, definitely tell me because it probably means my code is wrong too!

It is worth noting that some of the things I'm editing here is stuff I originally wrote a year or two ago and have since learned better. 😬

[ChrisChinchilla]

@MicahZoltu Thanks, it's more that it's quite hard for me to check the accuracy of some things for the same reason as you. Sometimes the only source of information was the old wiki (which may not be accurate), or asking people, which isn't ideal. I'm going to run this PR past people who know better than me and get some feedback on if the changes are correct. thanks again!