fix: add quotes for command in msvs generator (#217)

The msvs generator only added quotes for arguments of the action, the command itself should have quotes too.

Without this change actions will fail when python binary is placed in a path with spaces in it.

pylib/gyp/generator/msvs.py

@@ -435,6 +435,7 @@ def _BuildCommandLineForRuleRaw(
             # Support a mode for using cmd directly.
             # Convert any paths to native form (first element is used directly).
             # TODO(quote):  regularize quoting path names throughout the module
+            command[1] = '"%s"' % command[1]
             arguments = ['"%s"' % i for i in arguments]
         # Collapse into a single command.
         return input_dir_preamble + " ".join(command + arguments)