onnxruntime

Various test infra updates from testing Azure ops with MAUI test app (#17262)

### Description
<!-- Describe your changes. -->
- fix issue with handling string input
- set minSdkVersion
  - otherwise defaults to 19 which we don't support and the build breaks
- comment out the debug logging hook
  - enabling it breaks the Android native logging
  - can be enabled if you need to debug C# code
- update test data tools to allow creating input data for raw file
contents (e.g. audio) and from strings (e.g. auth token value)
- fix some warnings

### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->
Improve test setup