server : change deps.sh xxd files to string literals (#5221)
* Changed ugly xxd to literals.
HPP files are much more readable as multiline literals rather than hex arrays.
* Dashes in literal variable names.
Replace . and - with _ in file names -> variable names.
* Comment on removing xxd.
XXD-> string literals
* XXD to string literals.
Replaced these unreadable headers with string literal versions using new deps.sh.
