feat(picker): add inline picker (#28689)

Issue number: resolves #24905, resolves #26840, resolves #15710

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issue. -->

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## What is the current behavior?
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The current picker is only displayed as an overlay which makes it
impossible to use inline with the rest of the application. Additionally,
there are several bugs and missing features. For example, it is
impossible to know when the value of the picker column has changed using
public APIs. This is valuable for updating other columns in response to
that data.

## What is the new behavior?
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this PR. -->

- Introduces `ion-picker` as an inline wheel picker component. The
overlay picker is still available using `ion-picker-legacy`.
- The implementation of this component resolves linked bugs. It also
resolves linked features by exposing an `ionChange` event for developers
to listen for.

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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and migration path for existing applications below. -->


## Other information

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screenshots of how the component looks before and after the change. -->

Dev-build: `7.5.8-dev.11702398696.1ab62ea9`

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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: Shawn Taylor <shawn@ionic.io>
Co-authored-by: Maria Hutt <thetaPC@users.noreply.github.com>
Co-authored-by: Amanda Johnston <90629384+amandaejohnston@users.noreply.github.com>
Co-authored-by: Sean Perkins <13732623+sean-perkins@users.noreply.github.com>
Co-authored-by: Brandy Carney <brandyscarney@users.noreply.github.com>

packages/vue/scripts/copy-overlays.js

@@ -16,8 +16,8 @@ function generateOverlays() {
       name: 'IonLoading'
     },
     {
-      tag: 'ion-picker',
-      name: 'IonPicker'
+      tag: 'ion-picker-legacy',
+      name: 'IonPickerLegacy'
     },
     {
       tag: 'ion-toast',