Allow checking for exact matches with Action events.

Added additional param to action related methods to test for exactness.
If "p_exact_match" is true, then the action will only be "matched" if the provided input event *exactly* matches with the action event.

Before:
* Action Event = KEY_S
* Input Event = KEY_CONTROL + KEY_S
* Is Action Pressed = True

Now:
You can still do the above, however you can optionally check that the input is exactly what the action event is:
* Action Event = KEY_S
* Input Event = KEY_CONTROL + KEY_S
* p_exact_match = True
* Is Action Pressed = False
* If the Input Event was only KEY_S, then the result would be true.

Usage:

```gdscript
Input.is_action_pressed(action_name: String, exact_match: bool)
Input.is_action_pressed("my_action", true)

InputMap.event_is_action(p_event, "my_action", true)

func _input(event: InputEvent):
  event.is_action_pressed("my_action", false, true) # false = "allow_echo", true = "exact_match"
  event.is_action("my_action", true)
```

1 files changed, 5 insertions, 5 deletions

diff --git a/core/input/input_event.h b/core/input/input_event.h
index 6a71a24c8b..d70883fcf7 100644
--- a/core/input/input_event.h
+++ b/core/input/input_event.h
@@ -122,11 +122,11 @@ public:
 	void set_device(int p_device);
 	int get_device() const;
 
-	bool is_action(const StringName &p_action) const;
-	bool is_action_pressed(const StringName &p_action, bool p_allow_echo = false) const;
-	bool is_action_released(const StringName &p_action) const;
-	float get_action_strength(const StringName &p_action) const;
-	float get_action_raw_strength(const StringName &p_action) const;
+	bool is_action(const StringName &p_action, bool p_exact_match = false) const;
+	bool is_action_pressed(const StringName &p_action, bool p_allow_echo = false, bool p_exact_match = false) const;
+	bool is_action_released(const StringName &p_action, bool p_exact_match = false) const;
+	float get_action_strength(const StringName &p_action, bool p_exact_match = false) const;
+	float get_action_raw_strength(const StringName &p_action, bool p_exact_match = false) const;
 
 	// To be removed someday, since they do not make sense for all events
 	virtual bool is_pressed() const;