onnxruntime

[Java] Fix warnings (#14076)

Fix C6011, C6385, C6386 found by Visual Studio. Basically, I set the
maximum number of options for every EP to 128. To my knowledge, 128 is
big enough to support all EPs.

For support arbitrary number of EP options, we probably need #13999 and
create a "std::vector"-like struct in C language.