PT-1052 include numa information in pt tool output (#547)

* PT-1052: fix for pt-summary

* Re-added fix from commit 71fae6d117 into proper place: library directory
Added tests for PT-1052 (pt-summary only)

* Fixed tests for pt-summary,
set locale for pt-summary tests, so they are not affected by user environment.
Finished tests for PT-1052

* Added fix for PT-1983 into the proper place: library file

* PT-1052: fix for pt-stalk which now includes numastat data

t/pt-summary/samples/Linux/006/network_devices

@@ -0,0 +1,36 @@
+Settings for br-5bbb6abaea1c:
+	Supported ports: [ ]
+	Supported link modes:   Not reported
+	Supported pause frame use: No
+	Supports auto-negotiation: No
+	Supported FEC modes: Not reported
+	Advertised link modes:  Not reported
+	Advertised pause frame use: No
+	Advertised auto-negotiation: No
+	Advertised FEC modes: Not reported
+	Speed: Unknown!
+	Duplex: Unknown! (255)
+	Port: Other
+	PHYAD: 0
+	Transceiver: internal
+	Auto-negotiation: off
+	Link detected: no
+Settings for docker0:
+	Supported ports: [ ]
+	Supported link modes:   Not reported
+	Supported pause frame use: No
+	Supports auto-negotiation: No
+	Supported FEC modes: Not reported
+	Advertised link modes:  Not reported
+	Advertised pause frame use: No
+	Advertised auto-negotiation: No
+	Advertised FEC modes: Not reported
+	Speed: 10000Mb/s
+	Duplex: Unknown! (255)
+	Port: Other
+	PHYAD: 0
+	Transceiver: internal
+	Auto-negotiation: off
+	Link detected: yes
+Settings for wlp0s20f3:
+	Link detected: yes