[lldb/bindings] Change ScriptedThread initializer parameters

This patch changes the `ScriptedThread` initializer in couple of ways:
- It replaces the `SBTarget` parameter by a `SBProcess` (pointing to the
  `ScriptedProcess` that "owns" the `ScriptedThread`).
- It adds a reference to the `ScriptedProcessInfo` Dictionary, to pass
  arbitrary user-input to the `ScriptedThread`.

This patch also fixes the SWIG bindings methods that call the
`ScriptedProcess` and `ScriptedThread` initializers by passing all the
arguments to the appropriate `PythonCallable` object.

Differential Revision: https://reviews.llvm.org/D112046

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>

lldb/examples/python/scripted_process/scripted_process.py

@@ -190,18 +190,20 @@ class ScriptedThread:
     """
 
     @abstractmethod
-    def __init__(self, target):
+    def __init__(self, process, args):
         """ Construct a scripted thread.
 
         Args:
-            target (lldb.SBTarget): The target launching the scripted process.
+            process (lldb.SBProcess): The scripted process owning this thread.
             args (lldb.SBStructuredData): A Dictionary holding arbitrary
-                key/value pairs used by the scripted process.
+                key/value pairs used by the scripted thread.
         """
         self.target = None
+        self.process = None
         self.args = None
-        if isinstance(target, lldb.SBTarget) and target.IsValid():
-            self.target = target
+        if isinstance(process, lldb.SBProcess) and process.IsValid():
+            self.process = process
+            self.target = process.GetTarget()
 
         self.id = None
         self.name = None