Define and use 3 new text.dat strings for netmail sent confirmation

Sent to terminal user after successfully sending netmail:
- InternetMailSent
- FidoNetMailSent
- QWKNetMailSent

As requested by Keyop in irc.

src/sbbs3/netmail.cpp

@@ -341,6 +341,8 @@ bool sbbs_t::netmail(const char *into, const char *title, long mode, smb_t* resm
 	useron.etoday = (ushort)adjustuserrec(&cfg, useron.number, U_ETODAY, 0, 1);
 	if(!(useron.exempt&FLAG('S')))
 		subtract_cdt(&cfg,&useron,cfg.netmail_cost);
+
+	bprintf(text[FidoNetMailSent], to, smb_faddrtoa(&dest_addr,tmp));
 	if(mode&WM_FILE)
 		SAFEPRINTF2(str,"sent NetMail file attachment to %s (%s)"
 			,to, smb_faddrtoa(&dest_addr,tmp));
@@ -734,6 +736,10 @@ void sbbs_t::qwktonetmail(FILE *rep, char *block, char *into, uchar fromhub)
 			useron.etoday++;
 			putuserrec(&cfg,useron.number,U_ETODAY,5,ultoa(useron.etoday,tmp,10));
 
+			if(qnet)
+				bprintf(text[QWKNetMailSent], name, fulladdr);
+			else
+				bprintf(text[InternetMailSent], name, to);
 			safe_snprintf(str,sizeof(str), "%s (%s) sent %s NetMail to %s (%s) via QWK"
 				,sender, sender_id
 				,qnet ? "QWK":"Internet",name,qnet ? fulladdr : to);
@@ -912,6 +918,7 @@ void sbbs_t::qwktonetmail(FILE *rep, char *block, char *into, uchar fromhub)
 	useron.etoday++;
 	putuserrec(&cfg,useron.number,U_ETODAY,5,ultoa(useron.etoday,tmp,10));
 
+	bprintf(text[FidoNetMailSent], hdr.to, smb_faddrtoa(&fidoaddr,tmp));
 	sprintf(str,"%s sent NetMail to %s @%s via QWK"
 		,sender_id
 		,hdr.to,smb_faddrtoa(&fidoaddr,tmp));
@@ -1239,6 +1246,7 @@ bool sbbs_t::inetmail(const char *into, const char *subj, long mode, smb_t* resm
 	useron.etoday += (ushort)rcpt_count;
 	putuserrec(&cfg,useron.number,U_ETODAY,5,ultoa(useron.etoday,tmp,10));
 
+	bprintf(text[InternetMailSent], to_list);
 	SAFEPRINTF(str, "sent Internet Mail to %s", to_list);
 	logline("EN",str);
 	return(true);
@@ -1443,6 +1451,7 @@ bool sbbs_t::qnetmail(const char *into, const char *subj, long mode, smb_t* resm
 	useron.etoday++;
 	putuserrec(&cfg,useron.number,U_ETODAY,5,ultoa(useron.etoday,tmp,10));
 
+	bprintf(text[QWKNetMailSent], to, fulladdr);
 	SAFEPRINTF2(str,"sent QWK NetMail to %s (%s)"
 		,to,fulladdr);
 	logline("EN",str);

src/sbbs3/text.h

@@ -854,6 +854,9 @@ enum {
 	,SpinningCursor8
 	,SpinningCursor9
 	,HowManyColumns
+	,InternetMailSent
+	,FidoNetMailSent
+	,QWKNetMailSent
 
 	,TOTAL_TEXT
 };

src/sbbs3/text_defaults.c

@@ -1386,4 +1386,10 @@ const char * const text_defaults[TOTAL_TEXT]={
 	,"\xfa\xf9\xfe\xf9" // 842 SpinningCursor9
 	,"\x01\x5f\x01\x62\x01\x68\x5b\x01\x63\x40\x43\x48\x45\x43\x4b\x4d\x41\x52\x4b\x40\x01\x62\x5d\x20\x01\x79\x54\x65\x72\x6d\x69\x6e"
 		"\x61\x6c\x20\x63\x6f\x6c\x75\x6d\x6e\x73\x20\x5b\x01\x77\x41\x75\x74\x6f\x01\x79\x5d\x3a\x20\x01\x6e" // 843 HowManyColumns
+	,"\x01\x5b\x01\x6e\x01\x6d\x49\x6e\x74\x65\x72\x6e\x65\x74\x20\x6d\x61\x69\x6c\x20\x73\x65\x6e\x74\x20\x74\x6f\x20\x01\x68\x25\x73"
+		"\x01\x6e\x0d\x0a" // 844 InternetMailSent
+	,"\x01\x5b\x01\x6e\x01\x6d\x46\x69\x64\x6f\x20\x4e\x65\x74\x4d\x61\x69\x6c\x20\x73\x65\x6e\x74\x20\x74\x6f\x20\x01\x68\x25\x73\x20"
+		"\x40\x25\x73\x01\x6e\x0d\x0a" // 845 FidoNetMailSent
+	,"\x01\x5b\x01\x6e\x01\x6d\x51\x57\x4b\x20\x4e\x65\x74\x4d\x61\x69\x6c\x20\x73\x65\x6e\x74\x20\x74\x6f\x20\x01\x68\x25\x73\x20\x28"
+		"\x25\x73\x29\x01\x6e\x0d\x0a" // 846 QWKNetMailSent
 };