Apply clang-format for more src files and update spec test script (#775)

Apply clang-format for core/iwasm/include, core/iwasm/common and
core/iwasm/aot files.

Update spec cases test script:
- Checkout latest commit of https://github.com/WebAssembly/spec
- Checkout main branch but not master of https://github.com/WebAssembly/threads
- Update wabt to latest version

And update source debugging document.

Signed-off-by: Wenyong Huang <wenyong.huang@intel.com>

doc/source_debugging.md

@@ -36,7 +36,7 @@ iwasm -g=127.0.0.1:1234 test.wasm
 ``` bash
 cd ${WAMR_ROOT}/core/deps/llvm
 git apply ../../../build-scripts/lldb-wasm.patch
-mkdir build_lldb && cd build_lldb
+mkdir build-lldb && cd build-lldb
 cmake -DCMAKE_BUILD_TYPE:STRING="Release" -DLLVM_ENABLE_PROJECTS="clang;lldb" -DLLVM_TARGETS_TO_BUILD:STRING="X86;WebAssembly" -DLLVM_ENABLE_LIBXML2:BOOL=ON ../llvm
 make -j $(nproc)
 ```
@@ -87,4 +87,4 @@ wamrc -o test.aot test.wasm
 lldb-12 iwasm -- test.aot
 ```
 
-Then you can use lldb commands to debug both wamr runtime and your wasm application in ***current terminal***
+Then you can use lldb commands to debug both wamr runtime and your wasm application in ***current terminal***