Implement Windows thread/mutex/cond APIs to support multi-thread (#627)

Implement Windows thread/mutex/cond related APIs to support Windows multi-thread feature
Change Windows HW boundary check implementation for multi-thread: change SEH to VEH
Fix wasm-c-api issue of getting AOTFunctionInstance by index, fix wasm-c-api compile warnings
Enable to build invokeNative_general.c with cmake variable
Fix several issues in lib-pthread
Disable two LLVM passes in multi-thread mode to reserve volatile semantic
Update docker script and document to build iwasm with Docker image

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

ci/Dockerfile

@@ -0,0 +1,18 @@
+# Copyright (C) 2019 Intel Corporation.  All rights reserved.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+FROM ubuntu:18.04
+
+RUN apt update \
+  && apt install -y apt-transport-https ca-certificates gnupg \
+       software-properties-common wget lsb-release curl build-essential
+
+#
+# CMAKE (https://apt.kitware.com/)
+RUN wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | gpg --dearmor - | tee /etc/apt/trusted.gpg.d/kitware.gpg >/dev/null \
+  && apt purge --auto-remove cmake \
+  && apt-add-repository 'deb https://apt.kitware.com/ubuntu/ bionic main' \
+  && apt update \
+  && apt-get install -y kitware-archive-keyring \
+  && rm /etc/apt/trusted.gpg.d/kitware.gpg \
+  && apt-get install -y cmake

ci/build_wamr.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+# Copyright (C) 2019 Intel Corporation.  All rights reserved.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+docker build -t wamr_dev:0.1 -f Dockerfile . \
+  && docker run --rm -it \
+       --name wamr_building \
+       --mount type=bind,src=$(realpath .)/..,dst=/source \
+       --workdir /source \
+       wamr_dev:0.1 \
+       /bin/bash -c "\
+         pushd product-mini/platforms/linux \
+           && mkdir -p build  \
+           && pushd build \
+           && rm -rf * \
+           && cmake .. \
+           && make \
+           && popd \
+           && popd \
+           && echo 'Copying binary for image build' \
+           && mkdir -p build_out \
+           && rm build_out/* \
+           && cp -f product-mini/platforms/linux/build/iwasm build_out/iwasm"