Speed up the spec case test by parallelism (#819)

Port spec-test-script/all.sh to spec-test-script/all.py and enable to run
spec cases with multiple threads parallelly:
- It reduces spec_test.yml from ~14min to ~9min and reduces
  compilation_on_sgx.yml from ~18min to ~12min
- run `./test_wamr.sh` will keep the same experience likes before by default
- run `./test_wamr.sh -P` will enable parallelism mode
- in parallelism mode, all.py will be in a less-output mode. It only outputs
  the last words of failed cases and will not output logs for those passed

.github/workflows/compilation_on_sgx.yml

@@ -455,5 +455,5 @@ jobs:
         if: ${{ matrix.light == 'green' }}
         run: |
           source /opt/intel/sgxsdk/environment
-          ./test_wamr.sh -x -p -s spec -t ${{ matrix.running_mode }}
+          ./test_wamr.sh -x -p -s spec -P -t ${{ matrix.running_mode }}
         working-directory: ./tests/wamr-test-suites

.github/workflows/spec_test.yml

@@ -33,12 +33,12 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  DEFAULT_TEST_OPTIONS: "-s spec"
+  DEFAULT_TEST_OPTIONS: "-s spec -P"
   LLVM_CACHE_SUFFIX: "build-llvm_libraries_ex"
-  MULTI_MODULES_TEST_OPTIONS: "-s spec -M"
-  SIMD_TEST_OPTIONS: "-s spec -S"
-  THREADS_TEST_OPTIONS: "-s spec -p"
-  X86_32_TARGET_TEST_OPTIONS: "-m x86_32"
+  MULTI_MODULES_TEST_OPTIONS: "-s spec -M -P"
+  SIMD_TEST_OPTIONS: "-s spec -S -P"
+  THREADS_TEST_OPTIONS: "-s spec -p -P"
+  X86_32_TARGET_TEST_OPTIONS: "-m x86_32 -P"
 
 jobs:
   cancel_previous: