gh-105481: do not auto-generate pycore_intrinsics.h

[iritkatriel]

pycore_intrinsics.h is currently auto-generated by the build script, which adds complications to the build process but doesn't really buy us anything. This PR defines them in C and exposes through a method in the _opcode module. There are two places where the list of intrinsics is defined before and after this change.

• Issue: Generate opcode metadata from bytecodes.c instead of opcode.py #105481

[bedevere-bot]

🤖 New build scheduled with the buildbot fleet by @iritkatriel for commit ef8c521 🤖

If you want to schedule another build, you need to add the 🔨 test-with-refleak-buildbots label again.

[gvanrossum]

So the process for adding a new intrinsic is now just to add a line to the appropriate table and add a define to pycore_intrinsics.h and update the MAX define there? That's not too tedious.

[iritkatriel]

Some of the refleaks failures look like this:

====================================================================== FAIL: test_extended_arg (test.test_capi.test_misc.TestUops.test_extended_arg) Check EXTENDED_ARG handling in superblock creation ---------------------------------------------------------------------- Traceback (most recent call last): File "/home/buildbot/buildarea/pull_request.cstratak-RHEL7-x86_64.refleak/build/Lib/test/test_capi/test_misc.py", line 2491, in test_extended_arg self.assertIsNone(ex) AssertionError: <uop_executor object at 0x1c24a50> is not None ----------------------------------------------------------------------