Added CNG/LPG file + others

Multiple files added, including on CNG/LPG file that has been processed into the repo

Author: Snoman002

General Motors/00_File_Dropoff_Zone/2004 4.3L LU3 Manual Full Size Truck 4x2 12587603 OS STOCK.bin

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+VIN	1GCHC24U55E245471
+Engine	N/A
+Transmission	N/A
+PCM flash	1MB
+Operating System	52373027
+Calibration	52373026
+OS ID	NC
+Cal ID	
+BCC	DZAH
+OS Level	
+Cal Level	
+Cal file name	52373027.calz
+Cal file version	N/A
+Cal file date	N/A
+Operating System	52373027	$A5C1	
+Engine Calibration	52373007	$80C6	
+Engine Diagnostics	52373098	$3003	
+Transmission Calibration	52373015	$03B2	
+Transmission Diagnostics	52373016	$F427	
+Fuel System	52373018	$41E7	
+System	52373019	$693E	
+Speedometer	52373023	$CDD9	
+Manufacturer: GENERAL MOTORS LLC
+
+DBAs:
+
+Vehicle Type: TRUCK
+
+Model Year: 2005
+
+Make: CHEVROLET
+
+Model: Silverado
+
+Body Class: Pickup
+
+Series: 2500 (3/4 ton)
+Trim:
+Gross Vehicle Weight Rating: Class 2H: 9,001 - 10,000 lb (4,082 - 4,536 kg)
+Axles:
+Engine Displacement (L): 6.0
+Axle Configuration:
+Drive Type: 4x2
+Cylinders: 8
+Primary Fuel Type: CNG/LPG
+Engine Model: LC8
+Secondary Fuel Type:
+Electrification Level:
+Engine Brake (HP):
+Engine Manufacturer: GM
+Transmission Speed:
+Transmission Style:
+Notes: see discussion at facebook.com/groups/LsDroid/permalink/875309866605332

General Motors/00_File_Dropoff_Zone/2004 4.8L LR4 DBC 4L80E Express Van 12587603 OS STOCK.bin

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+This section of the repo is for the 52373027 OSID
+This OS appeares to be used on CNG/LPG conversion vehicles
+More info on this OSID provided by Pete Sonntag, creator of LS Droid. See: facebook.com/groups/LsDroid/permalink/875309866605332
+
+New bin files for the OSID can be added by copying an existing folder and editing the pertinent details.
+
+One BIN per folder
+
+Folder name is *OSID_VIN*
+
+VIN details copied from https://vpic.nhtsa.dot.gov/decoder/Decoder
+
+If no XDF exists these are unsupported OSs
+-if labeled Alpha an XDF has been started but is preliminary
+-if labeled RC1 the XDF may be suitable for use but is still in work
+-if labeled release the XDF is considered suitable for use (but may not be complete)