Eliminate dependence on boost::interprocess #8223

In this repo, `boost::interprocess` was being used soley to make `uint32_t` operations atomic. So I replaced each instance of
`boost::interprocess::ipcdetail::atomic(...)32` with `std::atomic` methods. I replaced member declarations as applicable. For example,
when I needed to change a `volatile uint32_t` into a `std::atomic<uint32_t>`. Sometimes, a member was being used a boolean flag, so
I replaced it with `std::atomic<bool>`.

You may notice that I didn't touch `levin_client_async.h`. That is because this file is entirely unused and will be deleted in PR monero-project#8211.

Additional changes from review:
* Make some local variables const
* Change postfix operators to prefix operators where value was not need

1 files changed, 1 insertions, 1 deletions

diff --git a/contrib/epee/include/net/connection_basic.hpp b/contrib/epee/include/net/connection_basic.hpp
index 23873f65b..01599aa4e 100644
--- a/contrib/epee/include/net/connection_basic.hpp
+++ b/contrib/epee/include/net/connection_basic.hpp
@@ -106,7 +106,7 @@ class connection_basic { // not-templated base class for rapid developmet of som
 		std::unique_ptr< connection_basic_pimpl > mI; // my Implementation
 
 		// moved here from orginal connecton<> - common member variables that do not depend on template in connection<>
-    volatile uint32_t m_want_close_connection;
+    std::atomic<bool> m_want_close_connection;
     std::atomic<bool> m_was_shutdown;
     critical_section m_send_que_lock;
     std::deque<byte_slice> m_send_que;