Workshop solana program example

Some adoptation of https://github.com/solana-labs/example-helloworld

To start

If you want to add missing code yourself following instructions from the talk, checkout start:

git checkout start

Master branch contains complete version.

Build and test for program compiled natively

$ cargo build
$ cargo test

Build and test the program compiled for BPF

$ cargo build-bpf
$ cargo test-bpf