incorporate arm into superstructure.cc by adding arm constants

Change-Id: Icfd6ba91044b7a8f29f10edf8c4c44ae1a443d2c
Signed-off-by: Yash Maheshwari <yashmahe2018@gmail.com>
Signed-off-by: James (Peilun) Li <jamespeilunli@gmail.com>
diff --git a/y2024_bot3/constants/common.jinja2 b/y2024_bot3/constants/common.jinja2
index 9b7af82..809f8c8 100644
--- a/y2024_bot3/constants/common.jinja2
+++ b/y2024_bot3/constants/common.jinja2
@@ -1,3 +1,16 @@
 {% set pi = 3.14159265 %}
 
 {%set zeroing_sample_size = 200 %}
+
+{# Arm #}
+{% set arm_encoder_ratio = (4.0 / 1.0) %}
+
+{%
+set arm_zero = {
+    "average_filter_size": zeroing_sample_size,
+    "one_revolution_distance": pi * 2.0 * arm_encoder_ratio,
+    "zeroing_threshold": 0.0005,
+    "moving_buffer_size": 20,
+    "allowable_encoder_error": 0.9
+}
+%}