fix(deno): update types for deno ^1.4.0 (#330)
fix(deno): update types for deno ^1.4.0 (#330)

In version 1.4 Deno adopted;

- the tsconfig setting [importsNotUsedAsValues](https://www.typescriptlang.org/tsconfig#importsNotUsedAsValues) - https://github.com/denoland/deno/pull/7413

This requires the use of;
- type only imports for values which are only used as types (`importsNotUsedAsValues`)
yargs/yargs-parser,yargs/yargs-parser,yargs/yargs-parser