Change libonnxruntime.so's SONAME: remove the minor and patch version.

[snnn]

Description

Resolve #21281 and #10589 .

1. Change libonnxruntime.so's SONAME: remove the minor and patch version.

By default when creating an ELF shared object, linker will set the file's internal DT_SONAME field to the specified name which is the file name plus SOVERSION . For example, the file name for our library is libonnxruntime.so. And by default SOVERSION is the lib's VERSION number, which is something like 1.19.0. So the DT_SONAME field in libonnxruntime.so is something like libonnxruntime.so.1.18.0. You can use readelf tool to examine it.

readelf -d libonnxruntime.so | grep SONAME
 0x000000000000000e (SONAME)             Library soname: [libonnxruntime.so.1.18.0]

When an executable is linked with a shared object which has a DT_SONAME field, then when the executable is run the dynamic linker will attempt to load the shared object specified by the DT_SONAME field rather than using the file name(which is libonnxruntime.so) given to the linker.

After this change, the SONAME will be shorten to "libonnxruntime.so.1" instead.

2. Set default version strings for Windows DLLs, to resolve ORT library files are missing versions. #10589