Unexpose pdf2htmlEX and wvWare in odr::OpenDocumentReader class #1537

Job	Run time
build-test-downstream (ubuntu-24.04, clang-18)	2m 2s
build (ubuntu-24.04, clang-18)	4m 13s
build-test-downstream (ubuntu-24.04, gcc-14)	2m 51s
build (ubuntu-24.04, gcc-14)	7m 2s
build-test-downstream (macos-13, clang-14)	2m 11s
build (macos-13, clang-14)	5m 11s
build-test-downstream (macos-14, armv8-clang-14)	1m 36s
build (macos-14, armv8-clang-14)	2m 46s
build-test-downstream (windows-2022, msvc-1940)	2m 48s
build (windows-2022, msvc-1940)	3m 39s
docker (ubuntu-24.04, clang-18)	15s
test (ubuntu-24.04, clang-18)	1m 50s
test (ubuntu-24.04, gcc-14)	1m 47s
test (macos-13, clang-14)	2m 45s
test (macos-14, armv8-clang-14)	1m 56s
	42m 52s

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