Added Flashloan spells & Bug fixes

What’s Changed

• Parameter types for Erc20 (#33) @maximandrei56
• Issue 25 (#26) @maximandrei56
• Issue 24 (#29) @maximandrei56
• Implemented flashloan spells (#23) @thrilok209

First release!

What’s Changed

• Minor changes (#22) @thrilok209
• Added Object-oriented Spell API (#21) @thrilok209
• Feature/iwan test (#19) @iwankruger
• Distinct package.json for dist (#15) @yellowgh0st
• Fix undefined this (#8) @hendrikbursian
• Feature typescript (#2) @hendrikbursian
• Connector script (#1) @Sowmayjain