Join license header with historical commentrs

Join the license header with historical comments using a separator so IDEs can correctly parse the initial header.

Also use .gitattributes to ensure all files are LF.

legacy/editor/ScriptCompilerAPI.h

@@ -14,9 +14,9 @@
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
 
-/*
+--- HISTORICAL COMMENTS FOLLOW ---
+
 * $Logfile: /DescentIII/Main/editor/ScriptCompilerAPI.h $
 * $Revision: 1.1.1.1 $
 * $Date: 2003-08-26 03:57:38 $
@@ -59,4 +59,4 @@ typedef struct{
 
 int ScriptCompile(tCompilerInfo *ci);
 bool ScriptCreateEmptyScript(char *filename,ubyte script_type);
-#endif
+#endif