FEXCore/Config: Adds support for enum mask configuration array

Allows us to consume an array of strings and convert it to an mask of
enum values. This is a quality of life change that allows us to specify
a mask of options.

The first configuration option added to support this is to control the
vixl disassembler. Now by default the vixl disassembler doesn't
disassemble any blocks and needs to be enabled individually.

eg:
```
FEXLoader --disassemble=blocks <args>
FEXLoader --disassemble=dispatcher <args>
FEXLoader --disassemble=blocks,dispatcher <args>
```

Has the additional convenience option of just passing in numbers as
well.

```
FEXLoader --disassemble=2 <args>
FEXLoader --disassemble=1 <args>
FEXLoader --disassemble=3 <args>
```

Also of course all of this works through environment variables.
```
FEX_DISASSEMBLE=blocks FEXInterpreter <args>
FEX_DISASSEMBLE=dispatcher FEXInterpreter <args>
FEX_DISASSEMBLE=blocks,dispatcher FEXInterpreter <args>
```

While only used fairly sparingly now, this is likely to have some
additional configurations using this in the future. Since we already
have some configs that are basically using enums, but just by doing
string comparisons.

This was asked for by a developer, so I figured I would throw it
together quick.

External/FEXCore/Source/Interface/Config/Config.cpp

@@ -1,5 +1,6 @@
 #include "Common/StringConv.h"
 #include "Common/StringUtils.h"
+#include "FEXCore/Utils/EnumUtils.h"
 
 #include <FEXCore/Config/Config.h>
 #include <FEXCore/Utils/Allocator.h>
@@ -37,6 +38,7 @@ namespace DefaultValues {
 #define OPT_BASE(type, group, enum, json, default) const P(type) P(enum) = P(default);
 #define OPT_STR(group, enum, json, default) const std::string_view P(enum) = P(default);
 #define OPT_STRARRAY(group, enum, json, default) OPT_STR(group, enum, json, default)
+#define OPT_STRENUM(group, enum, json, default) const uint64_t P(enum) = FEXCore::ToUnderlying(P(default));
 #include <FEXCore/Config/ConfigValues.inl>
 }