libdcp/src/search.h, branch tests

libdcp/src/search.h, branch tests DCP handling library https://git.carlh.net/cgit/libdcp/atom?h=tests 2022-04-20T18:06:40Z Move code to find CPLs in directories out of DCP-o-matic. 2022-04-20T18:06:40Z Carl Hetherington cth@carlh.net 2022-01-03T23:26:49Z urn:sha1:52c03575531045c08de6e8769e8f4b00204b5ccc This adds find_and_resolve_cpls().