Technical Documeentation About Oracles as Price Feeders for AMM v1

[jjmr007]

DistributedCollective/Sovryn-smart-contracts#270

[jjmr007]

It is basically implemented, the code is under review, tests are upcoming
The task statement: https://docs.google.com/document/d/1acGmVgz3ZTLuRQRx-82tMIZiNYepvqOWoWvs0k_EIFc
Implementation is here: https://github.com/DistributedCollective/oracle-based-amm/tree/v1-pool-oracle
Description of the contract changes from @rahne-sinclair :
https://docs.google.com/document/d/1RmtDoFLpyNwGXjhwnmv1Qx4Gp6XKGSglepZcvjj7R7Q
the right person to go for details is @rahne#7236 (discord)