Improvements to locale syscalls, fix TimeZone query and add more syscalls (#223)

This PR aims to do the following:
- Add the `NtUserGetAtomName` syscall.
- Add stub handlers for `NtUserSetWindowsHookEx`,
`NtUserUnhookWindowsHookEx`, and `NtUserCreateWindowEx`.
- Implement `NtGetNlsSectionPtr` (for Code Pages), add
`NtQueryDefaultUILanguage`, and improve `NtQueryInstallUILanguage`.
- Handle `SystemTimeZoneInformation`,
`SystemCurrentTimeZoneInformation`, and
`SystemDynamicTimeZoneInformation` in `NtQuerySystemInformation`.
- Skip `ThreadAffinityMask` in `NtSetInformationThread`.
- Fix `NtConnectPort` to allow TimeZone queries to work properly. This
is probably the most problematic change here because it required messing
with the shared section and hardcoding an offset (2504). Initializing
the data in this offset seems necessary for calls like
`GetTimeZoneInformation` to succeed, so maybe there's no other way
around it.

src/common/platform/kernel_mapped.hpp

@@ -453,6 +453,7 @@ union TEB_SAME_TEB_FLAGS_UNION
 
 #ifndef OS_WINDOWS
 using LCID = DWORD;
+using LANGID = WORD;
 #endif
 
 typedef struct _TEB64
@@ -862,6 +863,44 @@ typedef struct _SYSTEM_TIMEOFDAY_INFORMATION64
     ULONGLONG SleepTimeBias;
 } SYSTEM_TIMEOFDAY_INFORMATION64, *PSYSTEM_TIMEOFDAY_INFORMATION64;
 
+#ifndef OS_WINDOWS
+typedef struct _SYSTEMTIME
+{
+    WORD wYear;
+    WORD wMonth;
+    WORD wDayOfWeek;
+    WORD wDay;
+    WORD wHour;
+    WORD wMinute;
+    WORD wSecond;
+    WORD wMilliseconds;
+} SYSTEMTIME, *PSYSTEMTIME, *LPSYSTEMTIME;
+#endif
+
+typedef struct _SYSTEM_TIMEZONE_INFORMATION
+{
+    LONG Bias;
+    ARRAY_CONTAINER<char16_t, 32> StandardName;
+    SYSTEMTIME StandardDate;
+    LONG StandardBias;
+    ARRAY_CONTAINER<char16_t, 32> DaylightName;
+    SYSTEMTIME DaylightDate;
+    LONG DaylightBias;
+} SYSTEM_TIMEZONE_INFORMATION, *PSYSTEM_TIMEZONE_INFORMATION;
+
+typedef struct _SYSTEM_DYNAMIC_TIMEZONE_INFORMATION
+{
+    LONG Bias;
+    ARRAY_CONTAINER<char16_t, 32> StandardName;
+    SYSTEMTIME StandardDate;
+    LONG StandardBias;
+    ARRAY_CONTAINER<char16_t, 32> DaylightName;
+    SYSTEMTIME DaylightDate;
+    LONG DaylightBias;
+    ARRAY_CONTAINER<char16_t, 128> TimeZoneKeyName;
+    BOOLEAN DynamicDaylightTimeDisabled;
+} SYSTEM_DYNAMIC_TIMEZONE_INFORMATION, *PSYSTEM_DYNAMIC_TIMEZONE_INFORMATION;
+
 typedef struct _PROCESS_BASIC_INFORMATION64
 {
     NTSTATUS ExitStatus;