feat: support custom-page-size proposal

[HerrCai0907]

custom page size proposal

Fixed: #6873
Original PR: #7694

[kripken]

Comments on the first 1/4 or so. Nice work!

[HerrCai0907]

test/spec/testsuite/proposals/custom-page-sizes/memory_max.wast will use 4GB of RAM for memory. which may cause the tsan failed. It can work locally (in my 64GiB linux). @kripken @stevenfontanella what do you think for those cases, Do you think we can disable them in CI environment?

;; i32 (pagesize 1)
(assert_unlinkable
  (module
    (import "test" "unknown" (func))
    (memory 0xFFFF_FFFF (pagesize 1)))
  "unknown import")

;; i32 (default pagesize)
(assert_unlinkable
  (module
    (import "test" "unknown" (func))
    (memory 65536 (pagesize 65536)))
  "unknown import")

[HerrCai0907]

5c7061e can resolve the RAM usage issue, should I split it to another PR?