fix: bug when sending payload/data type of bytes instead of strings

[HyggeHalcyon]

example case where the bug can be replicated

from winpwn import *
from os.path import normpath
import pwn

exe = normpath('./challenge.exe')
io = process(exe)
payload = pwn.p64(0x010101)
io.send(payload)

First occurred error in win.py

Traceback (most recent call last):
  File "D:\REDACTED\test.py", line 8, in <module>
    io.send(payload)
  File "C:\Python311\Lib\site-packages\winpwn\winpwn.py", line 33, in send
    rs=self.write(buf)
       ^^^^^^^^^^^^^^^
  File "C:\Python311\Lib\site-packages\winpwn\winpwn.py", line 199, in write
    return self.Process.write(buf)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Python311\Lib\site-packages\winpwn\win.py", line 234, in write
    return self.pipe.write(buf)
           ^^^^^^^^^^^^^^^^^^^^
  File "C:\Python311\Lib\site-packages\winpwn\win.py", line 157, in write
    buf=Latin1_encode(buf)
        ^^^^^^^^^^^^^^^^^^
  File "C:\Python311\Lib\site-packages\winpwn\misc.py", line 84, in Latin1_encode
    return bytes(string,"Latin1")
           ^^^^^^^^^^^^^^^^^^^^^^
TypeError: encoding without a string argument

Second occurred error in misc.py

Traceback (most recent call last):
  File "D:\REDACTED\test.py", line 8, in <module>
    io.send(payload)
  File "C:\Python311\Lib\site-packages\winpwn\winpwn.py", line 34, in send
    showbuf(buf)
  File "C:\Python311\Lib\site-packages\winpwn\misc.py", line 140, in showbuf
    if buf.endswith(context.newline):
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: endswith first arg must be bytes or a tuple of bytes, not str

Third occurred error in cases when communicating through remote socket as follows

from winpwn import *
from os.path import normpath
import pwn

io = remote('127.0.0.1', 9001)
payload = pwn.p64(0x010101)
io.send(payload)

and it would generate the following error

Traceback (most recent call last):
  File "D:\REDACTED\test.py", line 9, in <module>
    io.send(payload)
  File "C:\Python311\Lib\site-packages\winpwn\winpwn.py", line 33, in send
    rs=self.write(buf)
       ^^^^^^^^^^^^^^^
  File "C:\Python311\Lib\site-packages\winpwn\winpwn.py", line 157, in write
    return self.sock.send(Latin1_encode(buf))
                          ^^^^^^^^^^^^^^^^^^
  File "C:\Python311\Lib\site-packages\winpwn\misc.py", line 84, in Latin1_encode
    return bytes(string,"Latin1")
           ^^^^^^^^^^^^^^^^^^^^^^
TypeError: encoding without a string argument