Merge branch 'develop'

tools/msvc_setup.ps1

+# Copyright 2021 Yan Yan
+# 
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+$installPath = &"C:\Program Files (x86)\Microsoft Visual Studio\Installer\vswhere.exe" -property installationpath
+Import-Module (Join-Path $installPath "Common7\Tools\Microsoft.VisualStudio.DevShell.dll")
+Enter-VsDevShell -VsInstallPath $installPath -SkipAutomaticLocation -DevCmdArguments '-arch=x64 -no_logo'
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version.txt

+2.0.0
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