Fix for hardcoded image wait timeout on TaskImage

[sparshev]

Found TaskImage for windows images generates successful output even for timeout on image availability waiting - so fixed that and added much more logging to easily figure out what's happening and where.

Related Issue

74

Motivation and Context

It should be just better

How Has This Been Tested?

Manually

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x] I have signed the Adobe Open Source CLA.
• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my changes.
• [x] All new and existing tests passed.