textures: Add back old Espi STAR* patches.

These were Espi's second set of STAR* textures that he made for
Freedoom, and he ultimately replaced them with the ones that we have
now. However, I always liked these textures and the fact that they have
a very different and distinctive look compared to the original Doom
STAR* textures.

While this doesn't roll back STAR* to using these textures (and I don't
think we should), it adds them back as a second set of textures under a
different name (s/STAR/ESPI/). It would be nice if some of the Freedoom
maps end up making use of these in places and a nice tribute to Espi who
contributed so much to Freedoom in its early years.

lumps/textures/textures.cfg

@@ -3443,6 +3443,45 @@ A-DBRI28        128     128
 A-MOSBK8        128     128
 *   MOSSBRK8    0       0
 
+ESPITAN1        64    128
+*   ESPI12_4     0      0
+*   ESPI12_5    32      0
+ESPITAN2       128    128
+*   ESPI17_6    64      0
+*   ESPI17_5    32      0
+*   ESPI18_7    96      0
+*   ESPI17_4     0      0
+ESPITAN3       128    128
+*   ESPI19_2     0      0
+*   ESPI19_1    64      0
+ESPIGR1         64    128
+*   ESPI11_1     0      0
+*   ESPI11_2    32      0
+ESPIGR2        128    128
+*   ESPI15_1     0      0
+*   ESPI16_2    32      0
+*   ESPI15_3    64      0
+*   ESPI16_1    96      0
+ESPIBR1         64    128
+*   ESPI11_4     0      0
+*   ESPI11_5    32      0
+ESPIBR2        128    128
+*   ESPI16_4    32      0
+*   ESPI15_4     0      0
+*   ESPI15_6    64      0
+*   ESPI16_6    96      0
+ESPIG1          64    128
+*   ESPI12_1     0      0
+*   ESPI12_2    32      0
+ESPIG2         128    128
+*   ESPI17_1     0      0
+*   ESPI17_2    32      0
+*   ESPI17_3    64      0
+*   ESPI18_5    96      0
+ESPIG3         128    128
+*   ESPI19_3    64      0
+*   ESPI19_4     0      0
+
 ; These textures are only in FreeDM
 
 #ifdef FREEDM