Features/Behavior Changes

• skip optional parameters where the value is null in custom values #14
• custom values can override fields in request header #18
• expose some sway options #20

Bug Fixes

• fix missing semicolon in transactionLevel template #12
• fix issue with async test file writing #19

Chores

• update devDeps #10
• update sway version #11
• fix vulnerabilities per GitHub scanning #22
• regenerate documentation #23