Add further samples for observation

* BIG5 and SHIFT-JIS.

Author: ross-spencer

samples/encoding/BIG5-big5.json

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+{"�s�{": "�s�{"}

samples/encoding/BIG5-float.json

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+1.11

samples/encoding/BIG5-int.json

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+123

samples/encoding/BIG5-list.json

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+[]

samples/encoding/BIG5-list_whitespace.json

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+      
+
+
+
+[]

samples/encoding/BIG5-map.json

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+{"a": "b"}

samples/encoding/BIG5-map_whitespace.json

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+      
+
+
+
+{"a": "b"}

samples/encoding/BIG5-shift_jis.json

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+笢웡웇웛웯읹웻장∺•웡웇웛웯읹웻장≽�

samples/encoding/SHIFT-JIS-big5.json

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+{"�A�B": "�A�B"}

samples/encoding/SHIFT-JIS-float.json

@@ -0,0 +1 @@
+1.11