Add Init() method to the Component interface and call it from main on
startup.

Will be used to move startup-time code from ReconcileComponent
(like adjusting params.env).

Signed-off-by: Yauheni Kaliuta <[email protected]>

Since it can be not desireable to return fatal error for some init
problems, it is still useful to log them. Wrap the logger into
Context like controller-runtime does [1][2].

[1] https://github.com/kubernetes-sigs/controller-runtime/blob/38546806f2faf5973e3321a7bd5bb3afdbb5767d/pkg/internal/controller/controller.go#L297
[2] https://github.com/kubernetes-sigs/controller-runtime/blob/38546806f2faf5973e3321a7bd5bb3afdbb5767d/pkg/internal/controller/controller.go#L111

Signed-off-by: Yauheni Kaliuta <[email protected]>

Jira: https://issues.redhat.com/browse/RHOAIENG-11592

Image names in environment are not supposed to be changed during
runtime of the operator, so it makes sense to update them only on
startup.

If manifests are overriden by DevFlags, the DevFlags' version will
be used.

The change is straight forward for most of the components where only
images are updated and params.env is located in the kustomize root
directory, but some components (dashboard, ray, codeflare,
modelregistry) also update some extra parameters. For them image
part only is moved to Init since other updates require runtime DSCI
information.

The patch also changes logic for ray, codeflare, and modelregistry
in this regard to update non-image parameters regardless of DevFlags
like it was changed in dashboard recently.

The DevFlags functionality brings some concerns:

- For most components the code is written such a way that as soon as
DevFlags supplied the global path variables are changed and never
reverted back to the defaults. For some (dashboard, trustyai) there
is (still global) OverridePath/entryPath pair and manifests reverted
to the default, BUT there is no logic of transition.

- codeflare: when manifests are overridden namespace param is
updated in the hardcoded (stock) path;

This logic is preserved.

Signed-off-by: Yauheni Kaliuta <[email protected]>