Reopend PR. See microsoft#4919
for previous PR.
Reopening this PR from another feature branch makes rebasing easier.

### Motivation and Context

As Described in microsoft#4781 right now there is no possibility in SK to add
Images as DataUris to ChatCompletion APIs, although the Azure OpenAI API
and the Open AI API both support this.

Fixes microsoft#4781

### Description

As per Discussion added overload to the ImageContent ctor that takes
BinaryData.
For backward Compat we kept the ctor that takes an URI.

Also the new ctor throws, if the BinaryData is null, empty or if there
is not MediaType provided.

I thought about allowing plain, non base64 encoded DataUris with
BinaryData.
The Idea was to not encode to base64, if the MediaType is set to
"text/plain", but then I decided, that this is not needed, since `Uri`
in general allows for DataUris like `new
Uri("data:text/plain;http://exmpaledomain.com")` just not for DataUris
that are longer than 65520 bytes. I feel like that is ok, for plain
DataUris.

We can still add this if needed.

Also as per discussion in the issue, I did not add additional overloads
for direct Streams support.

### Contribution Checklist

<!-- Before submitting this PR, please make sure: -->

- [x] The code builds clean without any errors or warnings
- [x] The PR follows the [SK Contribution
Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [x] All unit tests pass, and I have added new tests where possible
- [x] I didn't break anyone 😄

---------

Co-authored-by: Roger Barreto <19890735+RogerBarreto@users.noreply.github.com>

Reopend PR. See microsoft#4919
for previous PR.
Reopening this PR from another feature branch makes rebasing easier.

### Motivation and Context

As Described in microsoft#4781 right now there is no possibility in SK to add
Images as DataUris to ChatCompletion APIs, although the Azure OpenAI API
and the Open AI API both support this.

Fixes microsoft#4781

### Description

As per Discussion added overload to the ImageContent ctor that takes
BinaryData.
For backward Compat we kept the ctor that takes an URI.

Also the new ctor throws, if the BinaryData is null, empty or if there
is not MediaType provided.

I thought about allowing plain, non base64 encoded DataUris with
BinaryData.
The Idea was to not encode to base64, if the MediaType is set to
"text/plain", but then I decided, that this is not needed, since `Uri`
in general allows for DataUris like `new
Uri("data:text/plain;http://exmpaledomain.com")` just not for DataUris
that are longer than 65520 bytes. I feel like that is ok, for plain
DataUris.

We can still add this if needed.

Also as per discussion in the issue, I did not add additional overloads
for direct Streams support.

### Contribution Checklist

<!-- Before submitting this PR, please make sure: -->

- [x] The code builds clean without any errors or warnings
- [x] The PR follows the [SK Contribution
Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [x] All unit tests pass, and I have added new tests where possible
- [x] I didn't break anyone 😄

---------

Co-authored-by: Roger Barreto <19890735+RogerBarreto@users.noreply.github.com>