* using tidy_html5's fuzzer_temp_file utilities to create a file from fuzzing input in /tmp
* used FuzzerTemporaryFile class, updated copyright year
* catch all exceptions instead of a select few, fix styling in openexr_exrheader_fuzzer
* updating fuzzer_temp_file.h with the changes mentioned in https://github.com/google/oss-fuzz/pull/4236
Ravi Jotwani