Feature/1272 add --metadata option to delete&retrieve

[JoernBerkefeld]

PR details

What changes did you make? (Give an overview)

• closes [FEATURE] harmonize how type/key combos are passed in with sf-cli #1272

Further details (optional)

find full description in ticket #1273

Checklist

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• test scripts updated
• Wiki updated ([FEATURE] harmonize how type/key combos are passed in with sf-cli #1272 (comment))

[github-actions]

Coverage Report

Commit:4eaaf0b
Base: develop@907c685

Type	Base	This PR
Total Statements Coverage	65.83%	65.52%  (-0.31%)
Total Branches Coverage	66.33%	66.27%  (-0.06%)
Total Functions Coverage	75.37%	75.37%  (+0%)
Total Lines Coverage	65.83%	65.52%  (-0.31%)

Details (changed files):

File	Statements	Branches	Functions	Lines