1/3 Updated Makefile to allow VENDOR flag (adds -vendor to version string)

2/3 Added vendor/ dir to lock down dependent pkg versions.
The author of git.schwanenlied.me/yawning/{chacha20,newhope,kyber}.git has copied
their repos to gitlab.com/yawning/ but some imports of chacha20 from newhope still
inconsistently refer to git.schwanenlied.me/, breaking build.
Licenses for chacha20 also changed from CC0 to AGPL, which may or may not be an
issue. Until the two aforementioned issues are resolved, locking to last-good
versions is probably the best way forward for now.

To build with vendored deps, use make VENDOR=1 clean all

3/3 Moved body of CI push script into bacillus/

vendor/gopkg.in/hlandau/passlib.v1/hash/sha2crypt/raw/parse.go

@@ -0,0 +1,82 @@
+package raw
+
+import "fmt"
+import "strings"
+import "strconv"
+
+// Indicates that a password hash or stub is invalid.
+var ErrInvalidStub = fmt.Errorf("invalid stub")
+
+// Indicates that the number of rounds specified is not in the valid range.
+var ErrInvalidRounds = fmt.Errorf("invalid number of rounds")
+
+// Scans a sha256-crypt or sha512-crypt modular crypt stub or modular crypt hash
+// to determine configuration parameters.
+func Parse(stub string) (isSHA512 bool, salt, hash string, rounds int, err error) {
+	// $5$
+	if len(stub) < 3 || stub[0] != '$' || stub[2] != '$' {
+		err = ErrInvalidStub
+		return
+	}
+
+	if stub[1] == '6' {
+		isSHA512 = true
+	} else if stub[1] != '5' {
+		err = ErrInvalidStub
+		return
+	}
+
+	rest := stub[3:]
+	parts := strings.Split(rest, "$")
+	roundsStr := ""
+
+	switch len(parts) {
+	case 1:
+		// $5$
+		// $5$salt
+		salt = parts[0]
+	case 2:
+		// $5$salt$hash
+		// $5$rounds=1000$salt
+		if strings.HasPrefix(parts[0], "rounds=") {
+			roundsStr = parts[0]
+			salt = parts[1]
+		} else {
+			salt = parts[0]
+			hash = parts[1]
+		}
+	case 3:
+		// $5$rounds=1000$salt$hash
+		roundsStr = parts[0]
+		salt = parts[1]
+		hash = parts[2]
+	default:
+		err = ErrInvalidStub
+	}
+
+	if roundsStr != "" {
+		if !strings.HasPrefix(roundsStr, "rounds=") {
+			err = ErrInvalidStub
+			return
+		}
+
+		roundsStr = roundsStr[7:]
+		var n uint64
+		n, err = strconv.ParseUint(roundsStr, 10, 31)
+		if err != nil {
+			err = ErrInvalidStub
+			return
+		}
+
+		rounds = int(n)
+
+		if rounds < MinimumRounds || rounds > MaximumRounds {
+			err = ErrInvalidRounds
+			return
+		}
+	} else {
+		rounds = DefaultRounds
+	}
+
+	return
+}