Don't Use Project References In Examples

[opticyclic]

The examples use project references in the build.gradle

cordapp project(":contracts")
cordapp project(":workflows")

This is contradictory to what the README says:

cordapp "$accounts_release_group:accounts-contracts:$accounts_release_version"
cordapp "$accounts_release_group:accounts-workflows:$accounts_release_version"

When you add the dependencies in the same way as the README you get the error from #45

The examples should be updated to not use project references.