* Load `PklProject` using the same security settings and env vars passed provided via ExecutorSPIOptions
* Handle thrown `PklException` from loading `PklProject` and throw `ExecutorSPIException`
* Handle thrown `PklException` of older Pkl distributions, converting them into `ExecutorSpiException`
This adds a new feature, which allows Pkl to read resources and modules from external processes.
Follows the design laid out in SPICE-0009.
Also, this moves most of the messaging API into pkl-core
Fix a bug where overwriting `output` causes a PklBugException.
This now produces a more helpful message pointing to the actual problem.
Co-authored-by: translatenix <119817707+translatenix@users.noreply.github.com>
In messages "Read Resource Response" and "Read Module Response", if `contents` and `error` are both null, default to an empty byte array/string.
This resolves one of the issues reported in #656