Staking Contract

WIP TODO:

• Spec 5

Overview

Specs :

1. Owner can fund with an ERC20 reward token and define a total reward rate.
2. Users can stake an ERC20 staking token at any time.
3. Users receive rewards in the reward token, proportional to their stake vs total staked.
4. Users can withdraw at any time.
5. Upgradeable (T)

Test Coverage :

12 passing (1s)

------------------|----------|----------|----------|----------|----------------|

File	% Stmts	% Branch	% Funcs	% Lines	Uncovered Lines
contracts/	84.51	54.17	84.21	87.14
RewardToken.sol	100	50	100	100
StakedToken.sol	100	100	100	100
Staking.sol	83.08	54.55	78.57	85.94	... 81,90,91,95
------------------	----------	----------	----------	----------	----------------
All files	84.51	54.17	84.21	87.14
------------------	----------	----------	----------	----------	----------------