Created core.h/core.cpp, added to makefiles. Started moving core structures from main to core beginning with COutPoint.

src/main.h

@@ -5,6 +5,7 @@
 #ifndef BITCOIN_MAIN_H
 #define BITCOIN_MAIN_H
 
+#include "core.h"
 #include "bignum.h"
 #include "sync.h"
 #include "net.h"
@@ -267,47 +268,6 @@ public:
 
 
 
-/** An outpoint - a combination of a transaction hash and an index n into its vout */
-class COutPoint
-{
-public:
-    uint256 hash;
-    unsigned int n;
-
-    COutPoint() { SetNull(); }
-    COutPoint(uint256 hashIn, unsigned int nIn) { hash = hashIn; n = nIn; }
-    IMPLEMENT_SERIALIZE( READWRITE(FLATDATA(*this)); )
-    void SetNull() { hash = 0; n = (unsigned int) -1; }
-    bool IsNull() const { return (hash == 0 && n == (unsigned int) -1); }
-
-    friend bool operator<(const COutPoint& a, const COutPoint& b)
-    {
-        return (a.hash < b.hash || (a.hash == b.hash && a.n < b.n));
-    }
-
-    friend bool operator==(const COutPoint& a, const COutPoint& b)
-    {
-        return (a.hash == b.hash && a.n == b.n);
-    }
-
-    friend bool operator!=(const COutPoint& a, const COutPoint& b)
-    {
-        return !(a == b);
-    }
-
-    std::string ToString() const
-    {
-        return strprintf("COutPoint(%s, %u)", hash.ToString().c_str(), n);
-    }
-
-    void print() const
-    {
-        printf("%s\n", ToString().c_str());
-    }
-};
-
-
-
 
 /** An input of a transaction.  It contains the location of the previous
  * transaction's output that it claims and a signature that matches the