All the template are now compiled at compile-time with the `ructe` crate.
I preferred to use it instead of askama because it allows more complex Rust expressions, where askama only supports a small subset of expressions and doesn't allow them everywhere (for instance, `{{ macro!() | filter }}` would result in a parsing error).
The diff is quite huge, but there is normally no changes in functionality.
Fixes#161 and unblocks #110 and #273
* Run cargo clippy on plume-common
Run clippy on plume-common and adjuste code accordingly
* Run cargo clippy on plume-model
Run clippy on plume-model and adjuste code accordingly
* Reduce need for allocation in plume-common
* Reduce need for allocation in plume-model
add a quick compilation failure if no database backend is enabled
* Run cargo clippy on plume-cli
* Run cargo clippy on plume
