Setting pattern from memory (#218)

* ToString accepts c-style arrays

* added patternParameters to python

* fixed patwait time bug in validation

* moved load from file function to patterParameters

* server using patternparamters structure to get pattern

Co-authored-by: Erik Frojdh <erik.frojdh@gmail.com>

python/slsdet/pattern.py

@@ -0,0 +1,25 @@
+import _slsdet
+
+class patternParameters(_slsdet.patternParameters):
+    def __init__(self):
+        super().__init__()
+        self.view = self.numpy_view()
+        self.names = self.view.dtype.names
+
+    def __getattr__(self, name):
+        if name in self.names:
+            return self.view[name][0]
+        else:
+            raise KeyError(f"Key: {name} not found")
+
+    def __setattr__(self, name, value):
+        if name in ['view', 'names']:
+            self.__dict__[name] = value
+        elif name in self.names:
+            self.view[name] = value
+        else: 
+            raise KeyError(f"Key: {name} not found")
+
+    #Provide custom dir for tab completion
+    def __dir__(self):
+        return self.names