[New Feature] Support for loading sidebar, speech etc. files for more than 2 factions

[Rampastring]

Description:

The original game does not properly support loading unique assets of more than 2 factions. CnCNet ts-patches / DTA has many hacks related to fixing this:

; Set global variable byte containing side ID to load files for
@SET 0x004E2CFA, {mov byte [0x7E2500], al}
@SET 0x004E2CFF, nop
@SET 0x004E2D00, {add esp, 4}
@SJMP 0x004E2D03, 0x004E2D13 ; jmp short
@SET 0x004E2D05, nop

; Load sidebar MIX files for new sides properly (for saved games)
@SET 0x005D6C4F, {mov cl, [eax+1D91h]}
@CLEAR 0x005D6C55, 0x90, 0x005D6C58

; Load speech MIX files for new sides properly (for saved games)
@SJMP 0x005D6DB8, 0x005D6DCE     ;jmp short

@SET 0x005D6DCE, {xor ecx, ecx}
@SET 0x005D6DD0, {mov cl, [eax+1D91h]}
@CLEAR 0x005D6DD6, 0x90, 0x005D6DDB

; Load sidebar MIX files for new sides properly
@SET 0x005DD798, {mov cl, byte [0x007E2500]}
@CLEAR 0x005DD79E, 0x90, 0x005DD7A2

; Load speech MIX files for new sides properly
@SET 0x005DD822, {xor ecx, ecx}
@CLEAR 0x005DD822, 0x90, 0x005DD828
@SET 0x005DD82B, {mov cl, byte [0x007E2500]} ; Compile warning: byte value exceeds bounds?

There is also a separate hack in spawner.asm (https://github.com/CnCNet/ts-patches/blob/master/src/spawner/spawner.asm) starting from line 1419 onwards, supposedly GDI needs a value to be 1 in the original game while Nod needs it to be 0, which is the opposite of their side indexes:

    ; Sidebar hack for mods which add new sides and new sidebars for them
    ; this will not fuck invert al which is needed for normal TS sidebar loading
    ; as GDI needs 1 and Nod 0 for sidebar (which is the opposite of their side index)
    SpawnINI_Get_Bool str_Settings, str_SidebarHack, 0
    cmp al, 1
    pop eax
    jz  .Sidebar_Hack

    ; Invert AL to set byte related to what sidebar and speech graphics to load
    cmp al, 1
    jz .Set_AL_To_Zero

    mov al, 1
    jmp .Past_AL_Invert

.Set_AL_To_Zero:
    mov al, 0

.Past_AL_Invert:
.Sidebar_Hack:
    mov byte [0x7E2500], al ; For side specific mix files loading and stuff, without sidebar and speech hack
    mov ebx, [ScenarioStuff]
    mov byte [ebx+1D91h], al

    SpawnINI_Get_Int str_Settings, str_Color, 0
    mov dword [esi+0x39], eax  ; color
    mov dword [PlayerColor], eax

    mov dword [esi+0x41], -1

    mov [TempPtr], esi
    lea eax, [TempPtr]
    push eax
    mov ecx, NameNodeVector
    call NameNodeVector_Add

    mov esp,ebp
    pop ebp
    retn