Update Pascal filedef and extension mappings (geany#3694)

* Update Pascal filedef and extension mappings

  #### filetypes.pascal

  - add line comments

  - pair the 'fpc' compile command with another common Free Pascal
    utility [^1], 'instantfpc', to build and run the current file
    in a single step

  #### filetype_extensions.conf

  - add Lazarus project files (*.lpr)

* Replace obsolete [build_settings] with [build-menu]

data/filedefs/filetypes.pascal

@@ -38,7 +38,7 @@ mime_type=text/x-pascal
 #wordchars=_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789
 
 # single comments, like # in this file
-#comment_single=
+comment_single=//
 # multiline comments
 comment_open={
 comment_close=}
@@ -59,8 +59,18 @@ context_action_cmd=
 # 0 is spaces, 1 is tabs, 2 is tab & spaces
 #type=1
 
-[build_settings]
+[build-menu]
 # %f will be replaced by the complete filename
 # %e will be replaced by the filename without extension
-compiler=fpc "%f"
-run_cmd="./%e"
+FT_00_LB=_Compile
+FT_00_CM=fpc -s "%f"
+FT_00_WD=
+FT_01_LB=_Build
+FT_01_CM=fpc "%f"
+FT_01_WD=
+FT_02_LB=_Run script
+FT_02_CM=instantfpc "%f"
+FT_02_WD=
+EX_00_LB=_Execute
+EX_00_CM="./%e"
+EX_00_WD=

data/filetype_extensions.conf

@@ -56,7 +56,7 @@ Meson=meson.build;meson.options;meson_options.txt;
 Nim=*.nim;
 NSIS=*.nsi;*.nsh;
 Objective-C=*.m;*.mm;*.h;
-Pascal=*.pas;*.pp;*.inc;*.dpr;*.dpk;
+Pascal=*.pas;*.pp;*.inc;*.dpr;*.dpk;*.lpr;
 Perl=*.pl;*.perl;*.pm;*.agi;*.pod;
 PHP=*.php;*.php3;*.php4;*.php5;*.phtml;
 Po=*.po;*.pot;