refactor config yaml into new files

tcp_sensors/sheller_scale.yaml

@@ -0,0 +1,18 @@
+platform: tcp
+host: 192.168.1.21
+port: 26
+payload: ""
+name: "Sheller Scale"
+scan_interval:
+  seconds: 0.3
+value_template: >-
+  {% if value | contains('S') %}
+    {% set temp_value = value | regex_findall_index('\d+\.\d+(?=  lb)') | float %}
+    {% if value | contains('-') %}
+      {% set temp_value = temp_value * -1 %}
+    {% endif %}
+    {{ ((temp_value * 50 - (0.5 if temp_value > 0 else -0.5)) | int | float / 50) }}
+  {% else %}
+    {{ states("sensor.sheller_scale") }}
+  {% endif %}
+unit_of_measurement: "lb"