Resolve "Refactor CLI for scord and scord-ctl"

Closes #127

See merge request !91

scord:
- Configuration file now uses standard YAML format
- Add `--output` CLI argument (SCORD_LOG_OUTPUT)

scord-ctl:
- Add `--output` CLI argument
- Add `--listen` CLI argument (Fixes #126)
- Remove configuration file

Both:
- Remove file_options dependency
- Remove genopts dependency
- Replace yaml-cpp with rapidyaml
- Replace general settings with specific configurations (fixes #20)
- General improvements and bugfixes in `logger`
- Improved `net::server` configuration
- Fix fork()-related bug in `signal_listener`
- Remove environment variables

"Resolve build fails with outdated `tl::expected`"

See merge request !89

Fixes #125

Merge branch 'amiranda/93-api-offers-no-way-to-tear-down-an-adhoc-storage-system-after-it-has-been-deployed' into 'main'

Resolve "API offers no way to tear down an adhoc storage system after it has been deployed"

Closes #93

See merge request !87

Resolve "Build with Clang"

Closes #121

See merge request !86

For more information refer to:

https://wiki.sei.cmu.edu/confluence/display/cplusplus/EXP58-CPP.+Pass+an+object+of+the+correct+type+to+va_start

__VA_OPT__ is not available in C mode Clang :/

Merge branch 'amiranda/114-missing-information-about-which-job-nodes-can-be-used-for-administrative-purposes' into 'main'

Resolve "Missing information about which job nodes can be used for administrative purposes"

Closes #114

See merge request !85

Merge branch 'amiranda/106-adm_adhoc_resources_t-should-be-an-explicit-argument-of-adm_register_adhoc_storage-rather-than' into 'main'

Resolve "`ADM_adhoc_resources_t` should be an explicit argument of `ADM_register_adhoc_storage()` rather than a parameter of `adhoc_ctx`"

This MR modifies the API calls `ADM_register_adhoc_storage()` so that
the storage resources required for the adhoc instance are passed as 
an explicit argument rather than as part of the adhoc's execution 
context.

Following this line, it also modifies `ADM_update_adhoc_storage()` in 
so that the adhoc resources can be modified dynamically, rather than
the execution context which is left as a static property.

Closes #106

See merge request !84

Merge branch 'amiranda/67-admire-job_requirements-should-become-admire-job-requirements-symmetrically-with-job-resources' into 'main'

Resolve "`admire::job_requirements` should become `admire::job::requirements` symmetrically with `job::resources`"

Closes #67

See merge request !83

Resolve "Refactor api/rpc_types.[c|h]"

Closes #110

See merge request !80

All library headers now live under lib/scord/