Merge tag 'v1.3.7' into tizen

Merge tag 'v1.3.7' into tizen

libvorbis 1.3.7 (2020-07-04) -- "Xiph.Org libVorbis I 20200704 (Reducing Environment)"

* Fix CVE-2018-10393 - out-of-bounds read encoding very low sample rates.
* Fix CVE-2017-14160 - out-of-bounds read encoding very low sample rates.
* Fix handling invalid bytes per sample arguments.
* Fix handling invalid channel count arguments.
* Fix invalid free on seek failure.
* Fix negative shift reading blocksize.
* Fix accepting unreasonable float32 values.
* Fix tag comparison depending on locale.
* Fix unnecessarily linking libm.
* Fix memory leak in test_sharedbook.
* Update Visual Studio projects for ogg library filename change.
* Distribute CMake build files with the source package.
* Remove unnecessary configure --target switch.
* Add gitlab CI support.
* Add OSS-Fuzz support.
* Build system and integration updates.

Change-Id: Id3fe58a29509679f5b2ae2dfaa9da5dee8e7ff17
Signed-off-by: Jeongmo Yang <jm80.yang@samsung.com>