Please add an option to create HTOA only when it's not complete silence

[huserbg]

There are many albums with PREGAP which contains only zero samples and in this case no information is lost when "Gaps Appended" option is used. Converting from tracks to image produces exactly the same .wav file. I want to avoid having the "00. (HTOA)" file when possible so I use "Gaps Appended", convert back to image and compare the .wav file. If it's not identical, then I temporarily switch to "Gaps Appended + HTOA". It will be great if CUETools can automatically decide if HTOA is needed or not by analyzing the content.

[ha-korth]

Note: (for information purposes only) There's a similar request on the WISHLIST (except omitting by length instead of digital silence). https://hydrogenaud.io/index.php?topic=118915.0#post_General