lib/ignore: Replace lib/fnmatch with github.com/gobwas/glob

Because it's literally ten times faster:



	benchmark                  old ns/op     new ns/op     delta

	BenchmarkMatch-8           13842         1200          -91.33%

	BenchmarkMatchCached-8     139           147           +5.76%



	benchmark                  old allocs     new allocs     delta

	BenchmarkMatch-8           0              0              +0.00%

	BenchmarkMatchCached-8     0              0              +0.00%



	benchmark                  old bytes     new bytes     delta

	BenchmarkMatch-8           12            0             -100.00%

	BenchmarkMatchCached-8     0             0             +0.00%

vendor/github.com/gobwas/glob/match/any_of.go

@@ -0,0 +1,85 @@
+package match
+
+import (
+	"fmt"
+)
+
+type AnyOf struct {
+	Matchers Matchers
+}
+
+func NewAnyOf(m ...Matcher) AnyOf {
+	return AnyOf{Matchers(m)}
+}
+
+func (self *AnyOf) Add(m Matcher) error {
+	self.Matchers = append(self.Matchers, m)
+	return nil
+}
+
+func (self AnyOf) Match(s string) bool {
+	for _, m := range self.Matchers {
+		if m.Match(s) {
+			return true
+		}
+	}
+
+	return false
+}
+
+func (self AnyOf) Index(s string) (int, []int) {
+	index := -1
+
+	segments := acquireSegments(len(s))
+	for _, m := range self.Matchers {
+		idx, seg := m.Index(s)
+		if idx == -1 {
+			continue
+		}
+
+		if index == -1 || idx < index {
+			index = idx
+			segments = append(segments[:0], seg...)
+			continue
+		}
+
+		if idx > index {
+			continue
+		}
+
+		// here idx == index
+		segments = appendMerge(segments, seg)
+	}
+
+	if index == -1 {
+		releaseSegments(segments)
+		return -1, nil
+	}
+
+	return index, segments
+}
+
+func (self AnyOf) Len() (l int) {
+	l = -1
+	for _, m := range self.Matchers {
+		ml := m.Len()
+		if ml == -1 {
+			return -1
+		}
+
+		if l == -1 {
+			l = ml
+			continue
+		}
+
+		if l != ml {
+			return -1
+		}
+	}
+
+	return
+}
+
+func (self AnyOf) String() string {
+	return fmt.Sprintf("<any_of:[%s]>", self.Matchers)
+}