Improvement suggestions

Hi,

Please consider the following improvements:

1. If one does not use anything else but these definitions, NTSTATUS will be missing, you can just add:

```
#ifndef SW3_HEADER_H_
#define SW3_HEADER_H_

#include

#ifndef _NTDEF_
typedef _Return_type_success_(return >= 0) LONG NTSTATUS;
typedef NTSTATUS* PNTSTATUS;
#endif
```

2. If one needs to use another definition set like [phnt](https://github.com/winsiderss/phnt), the definitions will clash at compile time. My suggestion is to rename the structures/definitions with a prefix like:

```
typedef struct _SW3_SYSTEM_HANDLE
{
ULONG ProcessId;
BYTE ObjectTypeNumber;
BYTE Flags;
USHORT Handle;
PVOID Object;
ACCESS_MASK GrantedAccess;
} SW3_SYSTEM_HANDLE, *PSW3SYSTEM_HANDLE;
```

Same for functions (there is no reason we cannot name them as we wish):

```
EXTERN_C NTSTATUS Sw3NtCreateProcess(
OUT PHANDLE ProcessHandle,
IN ACCESS_MASK DesiredAccess,
IN POBJECT_ATTRIBUTES ObjectAttributes OPTIONAL,
IN HANDLE ParentProcess,
IN BOOLEAN InheritObjectTable,
IN HANDLE SectionHandle OPTIONAL,
IN HANDLE DebugPort OPTIONAL,
IN HANDLE ExceptionPort OPTIONAL);
```

This would prevent the "already defined" compiling issue. Perhaps add a flag like `--custom-prefix` which would prefix the functions/structured/definitions as the user specifies.

3. Instead of the current initial see, you might want to consider using [xoshiro prng](https://prng.di.unimi.it/).

Thanks!

No file or test is named. Start by locating the generator entry points for NTSTATUS, emitted structures and functions, PRNG selection, and command-line options; done requires an agreed scope for the three suggestions and generated output that avoids definition clashes.

Written by the indexing model from the issue text.