bg1npc.tp2 updates

Updating string references.  Using # references where possible in BGEE
strings.
Restore dialog file and script references for Xan quest merchants
File moves

Moving files to correct directories.
x#burn01.cre - to phase2
x#mag10b, x#mag10c, x#mag14d, x#prs10b - to core
Sahaugin file updates

The Sahaugin spear and staff were just normal non-magical items.
Replacing references in CREs to these items with stock spears.  This
way, the SAHSPEAR.ITM and SAHSTAFF.ITM files aren’t needed.
Typo in cmorgan_project_macros.tpa

Fixed typo in comment for DEFINE_PATCH_MACRO ~bg1npc_cre_dest_res~
Update p#fw2800.baf

Update reference from burn01.cre to x#burn01.cre.
Update x#gpsht.baf

x#gpsht.baf had two sections with hard-coded BG2 string references.
Replacing those with @ references to string in bg1npc_tmp.tra.
Also, updated bg1npc.tp2 to use COMPILE EVALUATE_BUFFER.
Updating bg1npc_tmp.tra files

Updated bg1npc_tmp.tra files (english, spanish, french, polish).  Using
hard BGEE references where possible to minimize need for new strings.