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/sl.msg

@@ -1,52 +0,0 @@
-# created by tools/loadICU.tcl -- do not edit
-namespace eval ::tcl::clock {
-    ::msgcat::mcset sl DAYS_OF_WEEK_ABBREV [list \
-        "Ned"\
-        "Pon"\
-        "Tor"\
-        "Sre"\
-        "\u010cet"\
-        "Pet"\
-        "Sob"]
-    ::msgcat::mcset sl DAYS_OF_WEEK_FULL [list \
-        "Nedelja"\
-        "Ponedeljek"\
-        "Torek"\
-        "Sreda"\
-        "\u010cetrtek"\
-        "Petek"\
-        "Sobota"]
-    ::msgcat::mcset sl MONTHS_ABBREV [list \
-        "jan"\
-        "feb"\
-        "mar"\
-        "apr"\
-        "maj"\
-        "jun"\
-        "jul"\
-        "avg"\
-        "sep"\
-        "okt"\
-        "nov"\
-        "dec"\
-        ""]
-    ::msgcat::mcset sl MONTHS_FULL [list \
-        "januar"\
-        "februar"\
-        "marec"\
-        "april"\
-        "maj"\
-        "junij"\
-        "julij"\
-        "avgust"\
-        "september"\
-        "oktober"\
-        "november"\
-        "december"\
-        ""]
-    ::msgcat::mcset sl BCE "pr.n.\u0161."
-    ::msgcat::mcset sl CE "po Kr."
-    ::msgcat::mcset sl DATE_FORMAT "%Y.%m.%e"
-    ::msgcat::mcset sl TIME_FORMAT "%k:%M:%S"
-    ::msgcat::mcset sl DATE_TIME_FORMAT "%Y.%m.%e %k:%M:%S %z"
-}