BYO Storage Account (or premium tier) to facilitate content heavy sites exceeding the 500MB limit

**Is your feature request related to a problem? Please describe.**
My site is nearing the 500MB limit allowed by standard static webapps. Allowing either a premium tier or a BYO Storage Account would enable sites to expand beyond this limit while still retaining all the awesomeness that is Static Web Apps.

**Describe the solution you'd like**
Introduce a premium tier that allows for 50GB of storage space similar to a premium tier App Service. Another option would be introduce a BYO Storage Account similar to how it already have BYO API(Function App, APIM, etc). Even allowing wildcards, similar to .referrer, in the routes would make a world of difference.

**Describe alternatives you've considered**
I tried using a storage account and was going to setup a CDN with a route /images/* to an external storage account, but the routes unfortunately redirect to an explicit endpoint. For example: If I used /images/* to route to https://mystorageaccount.blob.core.windows.net/images/*, and the user goes to /images/logo.svg, it redirects to https://mystorageaccount.blob.core.windows.net/images/* rather than https://mystorageaccount.blob.core.windows.net/images/logo.svg

I also considered using my pipeline to text transforms. My app is HTML, CSS, and JS. I am not using a framework. I supposed I could include global variables and fill in those with Javascript, or switch to a framework, but I really should not have to rewrite my app because of space limitations.

**Additional context**
I have a very image heavy website. Even though the images range from 500KB to 1 MB each, I am approaching nearly 450 images on my site. I have no solution at this point other than to stop delivering content or switch to something else.