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/et.msg

@@ -1,52 +0,0 @@
-# created by tools/loadICU.tcl -- do not edit
-namespace eval ::tcl::clock {
-    ::msgcat::mcset et DAYS_OF_WEEK_ABBREV [list \
-        "P"\
-        "E"\
-        "T"\
-        "K"\
-        "N"\
-        "R"\
-        "L"]
-    ::msgcat::mcset et DAYS_OF_WEEK_FULL [list \
-        "p\u00fchap\u00e4ev"\
-        "esmasp\u00e4ev"\
-        "teisip\u00e4ev"\
-        "kolmap\u00e4ev"\
-        "neljap\u00e4ev"\
-        "reede"\
-        "laup\u00e4ev"]
-    ::msgcat::mcset et MONTHS_ABBREV [list \
-        "Jaan"\
-        "Veebr"\
-        "M\u00e4rts"\
-        "Apr"\
-        "Mai"\
-        "Juuni"\
-        "Juuli"\
-        "Aug"\
-        "Sept"\
-        "Okt"\
-        "Nov"\
-        "Dets"\
-        ""]
-    ::msgcat::mcset et MONTHS_FULL [list \
-        "Jaanuar"\
-        "Veebruar"\
-        "M\u00e4rts"\
-        "Aprill"\
-        "Mai"\
-        "Juuni"\
-        "Juuli"\
-        "August"\
-        "September"\
-        "Oktoober"\
-        "November"\
-        "Detsember"\
-        ""]
-    ::msgcat::mcset et BCE "e.m.a."
-    ::msgcat::mcset et CE "m.a.j."
-    ::msgcat::mcset et DATE_FORMAT "%e-%m-%Y"
-    ::msgcat::mcset et TIME_FORMAT "%k:%M:%S"
-    ::msgcat::mcset et DATE_TIME_FORMAT "%e-%m-%Y %k:%M:%S %z"
-}