* Add fuzzing dictionaries for new ReadStat targets
They still need proper input corpuses, but this is a start.
* [readstat] Accommodate new file layout
corpus => fuzz/corpus
Dictionary files now included in source tree
These additional fuzzers all pass the existing check_build heuristics.
In the future, they would probably benefit from an input grammar file or corpus.
* Add ReadStat project
* Add fuzzing targets for new project ReadStat
Adding fuzzers for six file formats supported by ReadStat. A corpus
is generated in each case from example data in the test suite.
Tested locally on Linux, which check_build passing in all six cases.
Evan Miller