Hi! I took a look at our `examples` directory, and while reading through
some dataflows, I noticed that there are a lot of outdated node
syntaxes:
```YML
nodes:
- id: rust-node
custom:
build: cargo build -p benchmark-example-node --release
source: ../../target/release/benchmark-example-node
```
I think it would be better if we avoided using deprecated syntax in our
example folder, as it will be one of the first things people look at.
Removes the separate `dora-runtime` binary. The runtime can now be started by passing `--run-dora-runtime` to `dora-daemon`. This change makes setup and deployment easier since it removes one executable that needs to be copied across machines.