* [Leptonica] Added fuzzer with corpus
* Updated fuzzer to not create and read from a file
* Updated fuzzer to not create and read from a file
* Added check to see if pixReadMem is NULL
* leptonica: initial integration for OSS-Fuzz.
* Adding the sundew label for the leptonica fuzzer.
* Adding a copy right header to pix_rotate_shear_fuzzer.cc.