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/ro.msg

@@ -1,52 +0,0 @@
-# created by tools/loadICU.tcl -- do not edit
-namespace eval ::tcl::clock {
-    ::msgcat::mcset ro DAYS_OF_WEEK_ABBREV [list \
-        "D"\
-        "L"\
-        "Ma"\
-        "Mi"\
-        "J"\
-        "V"\
-        "S"]
-    ::msgcat::mcset ro DAYS_OF_WEEK_FULL [list \
-        "duminic\u0103"\
-        "luni"\
-        "mar\u0163i"\
-        "miercuri"\
-        "joi"\
-        "vineri"\
-        "s\u00eemb\u0103t\u0103"]
-    ::msgcat::mcset ro MONTHS_ABBREV [list \
-        "Ian"\
-        "Feb"\
-        "Mar"\
-        "Apr"\
-        "Mai"\
-        "Iun"\
-        "Iul"\
-        "Aug"\
-        "Sep"\
-        "Oct"\
-        "Nov"\
-        "Dec"\
-        ""]
-    ::msgcat::mcset ro MONTHS_FULL [list \
-        "ianuarie"\
-        "februarie"\
-        "martie"\
-        "aprilie"\
-        "mai"\
-        "iunie"\
-        "iulie"\
-        "august"\
-        "septembrie"\
-        "octombrie"\
-        "noiembrie"\
-        "decembrie"\
-        ""]
-    ::msgcat::mcset ro BCE "d.C."
-    ::msgcat::mcset ro CE "\u00ee.d.C."
-    ::msgcat::mcset ro DATE_FORMAT "%d.%m.%Y"
-    ::msgcat::mcset ro TIME_FORMAT "%H:%M:%S"
-    ::msgcat::mcset ro DATE_TIME_FORMAT "%d.%m.%Y %H:%M:%S %z"
-}