[build] msvc: add boost::process

* AppVeyor boost-process vcpkg package.
* Tell Boost linter to ignore it
* Add HAVE_BOOST_PROCESS for MSVC build (bitcoin_config.h)

Author: Sjors

build_msvc/bitcoin_config.h

@@ -47,6 +47,9 @@
 /* define if the Boost::Filesystem library is available */
 #define HAVE_BOOST_FILESYSTEM /**/
 
+/* define if the Boost::Process library is available */
+#define HAVE_BOOST_PROCESS /**/
+
 /* define if the Boost::System library is available */
 #define HAVE_BOOST_SYSTEM /**/
 

build_msvc/vcpkg-packages.txt

@@ -1 +1 @@
-berkeleydb boost-filesystem boost-multi-index boost-signals2 boost-test boost-thread libevent[thread] zeromq double-conversion
+berkeleydb boost-filesystem boost-multi-index boost-process boost-signals2 boost-test boost-thread libevent[thread] zeromq double-conversion

test/lint/lint-includes.sh

@@ -63,6 +63,7 @@ EXPECTED_BOOST_INCLUDES=(
     boost/optional.hpp
     boost/preprocessor/cat.hpp
     boost/preprocessor/stringize.hpp
+    boost/process.hpp
     boost/signals2/connection.hpp
     boost/signals2/optional_last_value.hpp
     boost/signals2/signal.hpp