Added Mexico pattern

runtime_data/config/mx.conf

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+; 30-50, 40-60, 50-70, 60-80
+char_analysis_min_pct = 0.30
+char_analysis_height_range = 0.20
+char_analysis_height_step_size = 0.10
+char_analysis_height_num_steps = 4
+
+segmentation_min_speckle_height_percent = 0.3
+segmentation_min_box_width_px = 4
+segmentation_min_charheight_percent = 0.5;
+segmentation_max_segment_width_percent_vs_average = 1.35;
+
+plate_width_mm = 304.8
+plate_height_mm = 152.4
+
+multiline = 0
+
+char_height_mm = 70
+char_width_mm = 35
+char_whitespace_top_mm = 38
+char_whitespace_bot_mm = 38
+
+template_max_width_px = 120
+template_max_height_px = 60
+
+; Higher sensitivity means less lines
+plateline_sensitivity_vertical = 25
+plateline_sensitivity_horizontal = 45
+
+; Regions smaller than this will be disqualified
+min_plate_size_width_px = 70
+min_plate_size_height_px = 35
+
+; Results with fewer or more characters will be discarded
+postprocess_min_characters = 5
+postprocess_max_characters = 7
+
+detector_file = us.xml
+
+ocr_language = lus
+
+; Override for postprocess letters/numbers regex. 
+postprocess_regex_letters = [A-Z]
+postprocess_regex_numbers = [0-9]
+
+; Whether the plate is always dark letters on light background, light letters on dark background, or both
+; value can be either always, never, or auto
+invert = auto

runtime_data/postprocess/mx.patterns

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+mx	@@@####
+mx	@##@@@
+mx	@@@###@
+mx	@@#####
+mx	####@@