Log thread count and memory usage on startup.

Helpful for diagnosing resource constrained systems.

Change-Id: I9e31298d6fa1f5243175350ba48699c0772d486c
Signed-off-by: Michael Meeks <michael.meeks@collabora.com>

wsd/COOLWSD.cpp

@@ -5841,6 +5841,10 @@ int COOLWSD::innerMain()
     std::string version, hash;
     Util::getVersionInfo(version, hash);
     LOG_INF("Coolwsd version details: " << version << " - " << hash << " - id " << Util::getProcessIdentifier() << " - on " << Util::getLinuxVersion());
+
+    LOG_INF("available memory: " << Util::getTotalSystemMemoryKb()/1024 << " MB");
+    LOG_INF("hardware threads: " << std::thread::hardware_concurrency());
+
 #endif
 
     initializeSSL();