* feat: corelightning `maxfee` and custom pay command
we should use maxfee instead of calculating the ratio and pass it
through.
also make it possible to run a custom pay command
* change for cln rest aswell
* fix: test data
* test: add `status` tests
* refactor: try-catch
* test: create invoice tests
* test: add first `payinvoice` test
* test: add pay_invoice error test
* feat: allow more test options
* test: add pending tests
* fix: make check
* test: add, pending no fee
* fix: make consistent with other API calls
* test: more assertions
* test: add pending
* test: first payment status test
* test: pending status
* refactor: remove duplicate code
* refactor: rename field
* chore: code format
* chore: uniform
