v0.6.2 - Retour en onefile, suppression _internal

Changements :
- Retour a --onefile : exe unique, plus besoin de _internal/
- Le fix Zone.Identifier (v0.5.9) resout le probleme de DLL pour les exe telecharges
- Suppression de _internal/ du repo et ajout au .gitignore
- build.bat simplifie

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

_internal/_tcl_data/msgs/lv.msg

@@ -1,52 +0,0 @@
-# created by tools/loadICU.tcl -- do not edit
-namespace eval ::tcl::clock {
-    ::msgcat::mcset lv DAYS_OF_WEEK_ABBREV [list \
-        "Sv"\
-        "P"\
-        "O"\
-        "T"\
-        "C"\
-        "Pk"\
-        "S"]
-    ::msgcat::mcset lv DAYS_OF_WEEK_FULL [list \
-        "sv\u0113tdiena"\
-        "pirmdiena"\
-        "otrdiena"\
-        "tre\u0161diena"\
-        "ceturdien"\
-        "piektdiena"\
-        "sestdiena"]
-    ::msgcat::mcset lv MONTHS_ABBREV [list \
-        "Jan"\
-        "Feb"\
-        "Mar"\
-        "Apr"\
-        "Maijs"\
-        "J\u016bn"\
-        "J\u016bl"\
-        "Aug"\
-        "Sep"\
-        "Okt"\
-        "Nov"\
-        "Dec"\
-        ""]
-    ::msgcat::mcset lv MONTHS_FULL [list \
-        "janv\u0101ris"\
-        "febru\u0101ris"\
-        "marts"\
-        "apr\u012blis"\
-        "maijs"\
-        "j\u016bnijs"\
-        "j\u016blijs"\
-        "augusts"\
-        "septembris"\
-        "oktobris"\
-        "novembris"\
-        "decembris"\
-        ""]
-    ::msgcat::mcset lv BCE "pm\u0113"
-    ::msgcat::mcset lv CE "m\u0113"
-    ::msgcat::mcset lv DATE_FORMAT "%Y.%e.%m"
-    ::msgcat::mcset lv TIME_FORMAT "%H:%M:%S"
-    ::msgcat::mcset lv DATE_TIME_FORMAT "%Y.%e.%m %H:%M:%S %z"
-}