Merge pull request #807 from ZhengQiushi:my_3.4

Add regression test for QRcode encoding and decoding
Co-authored-by: NAPrigarina <ann73617@gmail.com>

testdata/cv/qrcode/decode_encode/capacity.json

+{
+    "version_ecc_capacity": [
+        { "version_level": "1", "ecc_level": [ 19, 16, 13, 9 ] },
+        { "version_level": "2", "ecc_level": [ 34, 28, 22, 16 ] },
+        { "version_level": "3", "ecc_level": [ 55, 44, 34, 26 ] },
+        { "version_level": "4", "ecc_level": [ 80, 64, 48, 36 ] },
+        { "version_level": "5", "ecc_level": [ 108, 86, 62, 46 ] }
+    ]
+}

testdata/cv/qrcode/decode_encode/symbol_sets.json

+{
+    "symbols_sets": [
+        { "mode": 1, "symbols_set":"0123456789" },
+        { "mode": 2, "symbols_set":"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ $%*+-./:" },
+        { "mode": 4, "symbols_set":"!#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[]^_`abcdefghijklmnopqrstuvwxyz{|}"}
+    ]
+}

testdata/cv/qrcode/encode/dataset_config.json

+{
+    "test_images": [
+        { "image_name": "version1_mode1.png", "info": "12345678" },
+        { "image_name": "version1_mode2.png", "info": "ADSWE22223DFAS" },
+        { "image_name": "version1_mode4.png", "info": "woaiwo5555@qq.com" },
+        { "image_name": "version1_mode7.png", "info": "дЛцмЩрёВ" },
+        { "image_name": "version2_mode1.png",
+            "info": "91172339675319066800542009332763324407887566419283892024943292" },
+        { "image_name": "version2_mode2.png",
+            "info": "000NATASHA WE DROPPED EVERYTHING000" },
+        { "image_name": "version2_mode4.png",
+            "info": "aQqdqecq%hre3?JXcDxx#PqLG_29G*R^" },
+        { "image_name": "version2_mode7.png",
+            "info": "42ЁдЬзьКЕ,ыЙкя" },
+        { "image_name": "version3_mode2.png",
+            "info": "OPENCV OSPP 2020 QR-CODE ENCODER. TEST ENCODER QR VERSION 3 MODE ALPHANUMERIC" },
+        { "image_name": "version3_mode4.png",
+            "info": "https://github.com/opencv/opencv/tree/master/modules/" },
+        { "image_name": "version3_mode7.png",
+            "info": "ПЖлШУ.ьёвщЛДо8феп7ъА" },
+        { "image_name": "version4_mode4.png",
+            "info": "aQqdqecq%hre3?JXcDxx#PqLG_29G*R^&f?bD6C5qam+Y_MUGaSmS5&fh_Q&bCZz" },
+        { "image_name": "version4_mode7.png",
+            "info": "и?ЮпЙДЁХслМЖЬ4ыпЛД,нЕу5РВя8ЦзцП.6б" },
+        { "image_name": "version5_mode7.png",
+            "info": "957БщпоХСЛдЦешхЯ1ЕШТ;П4!сёИгфла.НЫКУЗВЧ,уймЁМ" }
+    ]
+}