Add support for float timestamp

Ref: araddon/pull/148

Author: iTanken

parseany.go

@@ -370,7 +370,10 @@ iterRunes:
 				// 08.21.71
 				// 2014.05
 				p.stateDate = dateDigitDot
-				if i == 4 {
+				if i == 10 && len(datestr) <= 14 {
+					p.stateDate = dateDigit
+					datestr = datestr[:10] + datestr[11:] + "000"[:14-len(datestr)]
+				} else if i == 4 {
 					p.yearlen = i
 					p.moi = i + 1
 					p.setYear()

parseany_test.go

@@ -424,6 +424,10 @@ var testInputs = []dateTest{
 	{in: "171113 14:14:20", out: "2017-11-13 14:14:20 +0000 UTC"},
 
 	// all digits:  unix secs, ms etc
+	{in: "1332151919.329", out: "2012-03-19 10:11:59.329 +0000 UTC"},
+	{in: "1332151919.32", out: "2012-03-19 10:11:59.32 +0000 UTC"},
+	{in: "1332151919.", out: "2012-03-19 10:11:59 +0000 UTC"},
+	{in: "1332151919.001", out: "2012-03-19 10:11:59.001 +0000 UTC"},
 	{in: "1332151919", out: "2012-03-19 10:11:59 +0000 UTC"},
 	{in: "1332151919", out: "2012-03-19 10:11:59 +0000 UTC", loc: "America/Denver"},
 	{in: "1384216367111", out: "2013-11-12 00:32:47.111 +0000 UTC"},