[shape-detection-api] Enum values that ignore naming conventions in Accelerated Shape Detection in Images

While crawling Accelerated Shape Detection in Images, the following enum values were found to ignore naming conventions (lower case, hyphen separated words):

• The value "code_128" of the enum BarcodeFormat does not match the expected conventions (lower case, hyphen separated words)
• The value "code_39" of the enum BarcodeFormat does not match the expected conventions (lower case, hyphen separated words)
• The value "code_93" of the enum BarcodeFormat does not match the expected conventions (lower case, hyphen separated words)
• The value "data_matrix" of the enum BarcodeFormat does not match the expected conventions (lower case, hyphen separated words)
• The value "ean_13" of the enum BarcodeFormat does not match the expected conventions (lower case, hyphen separated words)
• The value "ean_8" of the enum BarcodeFormat does not match the expected conventions (lower case, hyphen separated words)
• The value "qr_code" of the enum BarcodeFormat does not match the expected conventions (lower case, hyphen separated words)
• The value "upc_a" of the enum BarcodeFormat does not match the expected conventions (lower case, hyphen separated words)
• The value "upc_e" of the enum BarcodeFormat does not match the expected conventions (lower case, hyphen separated words)

See Use casing rules consistent with existing APIs in Web Platform Design Principles document for guidance.

_{This issue was detected and reported semi-automatically by Strudy based on data collected in webref.}

Start with the Accelerated Shape Detection in Images specification and its BarcodeFormat enum, then read the linked W3C Web Platform Design Principles casing rules. Update the nine listed values to use lowercase, hyphen-separated names, and verify that every reported convention mismatch is resolved.