Store and format time in CBufLine.

Buflines need to know which part of text to wrap with the timestamp. The
second parameter to `AddLine` (and shorthands) is that text, which after
wrapping is added as the `text` parameter to `NamedFormat`.

Timestamps are formatted at the moment buffers are flushed to the
client. The client parameter to `GetLine` provides access to the User
and the new server-time capability.

modules/savebuff.cpp

@@ -116,6 +116,7 @@ public:
 			for (it = vsLines.begin(); it != vsLines.end(); ++it) {
 				CString sLine(*it);
 				sLine.Trim();
+				// FIXME: Deserialize other CBufLine attributes.
 				pChan->AddBuffer(sLine);
 			}
 		} else
@@ -151,6 +152,7 @@ public:
 				unsigned int uSize = Buffer.Size();
 				for (unsigned int uIdx = 0; uIdx < uSize; uIdx++) {
 					const CBufLine& Line = Buffer.GetBufLine(uIdx);
+					// FIXME: Serialize other CBufLine attributes.
 					sFile += Line.GetFormat() + "\n";
 				}