nsh: Add tests for NSH headers types 1 and 2

diff --git a/tests/decode-nsh-type1/README.md b/tests/decode-nsh-type1/README.md
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+NSH - Network Service Header (https://tools.ietf.org/html/rfc8300)
+Ensure NSH Type 1 headers are decoded.
+Type 1 headers have a fixed-Length context header (16-bytes).

diff --git a/tests/decode-nsh-type1/input.pcap b/tests/decode-nsh-type1/input.pcap
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diff --git a/tests/decode-nsh-type1/test.yaml b/tests/decode-nsh-type1/test.yaml
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+requires:
+    min-version: 6
+
+args:
+- -k none
+
+checks:
+  - filter:
+      count: 1
+      match:
+        event_type: flow
+  - filter:
+      count: 1
+      match:
+        event_type: stats
+  - stats:
+      decoder.ethernet: 1
+      decoder.nsh: 1
+      decoder.ipv4: 1
+      decoder.udp: 1
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diff --git a/tests/decode-nsh-type2/README.md b/tests/decode-nsh-type2/README.md
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+NSH - Network Service Header (https://tools.ietf.org/html/rfc8300)
+Ensure NSH Type 2 headers are decoded.
+Type 2 headers have zero or more variable-length context headers.

diff --git a/tests/decode-nsh-type2/input.pcap b/tests/decode-nsh-type2/input.pcap
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diff --git a/tests/decode-nsh-type2/test.yaml b/tests/decode-nsh-type2/test.yaml
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+++ b/tests/decode-nsh-type2/test.yaml
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+requires:
+    min-version: 6
+
+args:
+- -k none
+
+checks:
+  - filter:
+      count: 1
+      match:
+        event_type: flow
+  - filter:
+      count: 1
+      match:
+        event_type: stats
+  - stats:
+      decoder.ethernet: 1
+      decoder.nsh: 1
+      decoder.ipv4: 1
+      decoder.udp: 1
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