LibLocale: Move locale source files to the LibLocale folder

These are still included in LibUnicode, but this updates their location
and the include paths of other files which include them.

Userland/Libraries/LibUnicode/Forward.h

@@ -22,57 +22,3 @@ struct CurrencyCode;
 struct SpecialCasing;
 
 }
-
-namespace Locale {
-
-enum class CalendarFormatType : u8;
-enum class CalendarPatternStyle : u8;
-enum class CalendarSymbol : u8;
-enum class CharacterOrder : u8;
-enum class CompactNumberFormatType : u8;
-enum class Condition : u8;
-enum class Currency : u16;
-enum class DateField : u8;
-enum class DayPeriod : u8;
-enum class Era : u8;
-enum class FirstDayRegion : u8;
-enum class HourCycle : u8;
-enum class HourCycleRegion : u16;
-enum class Key : u8;
-enum class KeywordCalendar : u8;
-enum class KeywordCollation : u8;
-enum class KeywordColCaseFirst : u8;
-enum class KeywordColNumeric : u8;
-enum class KeywordHours : u8;
-enum class KeywordNumbers : u8;
-enum class Language : u16;
-enum class ListPatternType : u8;
-enum class Locale : u16;
-enum class MinimumDaysRegion : u8;
-enum class Month : u8;
-enum class NumericSymbol : u8;
-enum class PluralCategory : u8;
-enum class ScriptTag : u8;
-enum class StandardNumberFormatType : u8;
-enum class Style : u8;
-enum class Territory : u8;
-enum class Weekday : u8;
-enum class WeekendEndRegion : u8;
-enum class WeekendStartRegion : u8;
-
-struct CalendarFormat;
-struct CalendarPattern;
-struct CalendarRangePattern;
-struct Keyword;
-struct LanguageID;
-struct ListPatterns;
-struct LocaleExtension;
-struct LocaleID;
-struct NumberFormat;
-struct NumberGroupings;
-struct OtherExtension;
-struct PluralOperands;
-struct TransformedExtension;
-struct TransformedField;
-
-}