Add pbm

Author: Matt Land

adafruit_imageload/__init__.py

@@ -55,4 +55,3 @@ def load(filename, *, bitmap=None, palette=None):
             return pnm.load(f, header, bitmap=bitmap, palette=palette)
         else:
             raise RuntimeError("Unsupported image format")
-

adafruit_imageload/pnm/pbm/__init__.py

@@ -0,0 +1,20 @@
+import logging
+
+
+
+def load(f, magic_number, header, bitmap = None , palette = None):
+    # type: (stream, str, list, c_obj, c_obj) -> bitmap, palette
+    height = header[0]
+    width = header[1]
+    logging.info(f'height: {height}')
+    if palette:
+        palette = palette(1)
+    if bitmap:
+        bitmap = bitmap(header[0], header[1], 1)
+        for line in range(height-1,-1,-1):
+
+            chunk = f.read(width)
+            #logging.info(chunk)
+    return bitmap, palette
+
+    #while not has 3 signnif