key payable is nil and not defined for any functions

fix crash abi parsing

Updated detailed documentation for Contract transaction with ABI string

Updated Doc

Added Function for contract transaction with ABI string

Updated doc for Contract Transaction

…adme

Update README.md

Gas estimate fix

Update carthage libraries

- upgrade SPM tool version to current.
- Save 5.0 as version specific one.
- exclude js files for macOS version.

The swift tools 5.5 is not released yet.

- remote and local

Move EIP712Tests to local_tests/

.

Add .swiftpm dir to .gitignore.

Add carthage job to CI.

Fix building issue

…anges.

Bugfix: Derive PublicKey

Cocoapods dependencies are not updated, since there's a lack of setup github based dependencies in `podspec` file and updates are not presented in the Cocoapods repo.

Drop unused xcworkspace.
Drop unused SimHash in Carthage dependencies config.