feat: Add single create bundle command

[jimmidyson]

This handles both image and helm charts config files so can be used to replace both of the individual subcommands, which are now deprecated.

[github-actions[bot]]

Unit test results

100 tests  ±0   100 :white_check_mark: ±0   0s :stopwatch: ±0s  25 suites +1     0 :zzz: ±0    1 files   ±0     0 :x: ±0 

Results for commit 52b748d8. ± Comparison against base commit 4b2abb02.

This pull request removes 11 and adds 11 tests. Note that renamed tests count towards both.

``` imagebundle ‑ TestEmptyPS imagebundle ‑ TestEmptyPSValue imagebundle ‑ TestPS imagebundle ‑ TestPSAppend imagebundle ‑ TestPSAsSliceValue imagebundle ‑ TestPSDefault imagebundle ‑ TestPSGetSlice imagebundle ‑ TestPSInvalidPlatform imagebundle ‑ TestSSCalledTwice imagebundle ‑ TestSSWithComma … ``` ``` flags ‑ TestEmptyPS flags ‑ TestEmptyPSValue flags ‑ TestPS flags ‑ TestPSAppend flags ‑ TestPSAsSliceValue flags ‑ TestPSDefault flags ‑ TestPSGetSlice flags ‑ TestPSInvalidPlatform flags ‑ TestSSCalledTwice flags ‑ TestSSWithComma … ```

:recycle: This comment has been updated with latest results.

[github-actions[bot]]

e2e test results

33 tests  ±0   30 :white_check_mark: ±0   1m 36s :stopwatch: -20s  2 suites ±0    3 :zzz: ±0   1 files   ±0    0 :x: ±0 

Results for commit 52b748d8. ± Comparison against base commit 4b2abb02.

:recycle: This comment has been updated with latest results.