Move public LibC classes out of internal

Dalamud/Game/Libc/LibcFunction.cs

@@ -2,7 +2,7 @@ using System;
 using System.Runtime.InteropServices;
 using System.Text;
 
-namespace Dalamud.Game.Internal.Libc
+namespace Dalamud.Game.Libc
 {
     /// <summary>
     /// This class handles creating cstrings utilizing native game methods.

Dalamud/Game/Libc/LibcFunctionAddressResolver.cs

@@ -1,6 +1,8 @@
 using System;
 
-namespace Dalamud.Game.Internal.Libc
+using Dalamud.Game.Internal;
+
+namespace Dalamud.Game.Libc
 {
     /// <summary>
     /// The address resolver for the <see cref="LibcFunction"/> class.

Dalamud/Game/Libc/OwnedStdString.cs

@@ -1,7 +1,7 @@
 using System;
 using System.Runtime.InteropServices;
 
-namespace Dalamud.Game.Internal.Libc
+namespace Dalamud.Game.Libc
 {
     /// <summary>
     /// An address wrapper around the <see cref="StdString"/> class.

Dalamud/Game/Libc/StdString.cs

@@ -2,7 +2,7 @@ using System;
 using System.Runtime.InteropServices;
 using System.Text;
 
-namespace Dalamud.Game.Internal.Libc
+namespace Dalamud.Game.Libc
 {
     /// <summary>
     /// Interation with std::string.