Rewrite with cpp-template class and multiple callbacks
Changed linking to shared v8 again
Updated test execution and added native debug macro
Added more multithreading to tests
- Fixed multithreading issues using v8 isolates
- Fixed double memory release
Explicitly include resources inside build artifact
Reworked callback handling

- Reimplemented callback matching to have multiple callback functions
- Added require callback for CommonJS resolving
Fixed order of context setup and script compilation
Refactoring work

- Updated debug options
- Reworked context creation
- Updated require callback
FIX #1: Added basic parts of common-js specification
Updated to new javacpp version
Updated v8 build