Crypto: Use CryptoLibrary source file instead of inlining in header

src/Crypto/Impl/CryptoLibrary.cpp

@@ -0,0 +1,14 @@
+#include "CryptoLibrary.h"
+#include "tommath.h"
+
+void CryptoLibrary::Init()
+{
+    static bool initialized = false;
+
+    if (!initialized)
+    {
+        initialized = true;
+
+        ltc_mp = ltm_desc;
+    }
+}

src/Crypto/Impl/CryptoLibrary.h

@@ -6,15 +6,5 @@
 class CryptoLibrary
 {
 public:
-    static void Init()
-    {
-        static bool initialized = false;
-
-        if(!initialized)
-        {
-            initialized = true;
-
-            ltc_mp = ltm_desc;
-        }
-    }
+    static void Init();
 };