package/waf: bump to version 2.0.19

Also add myself as DEVELOPER, as waf is currently orphan,
and I am the last one to fiddle with it.

Signed-off-by: Titouan Christophe <titouan.christophe@railnova.eu>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

DEVELOPERS

@@ -2452,6 +2452,7 @@ F:	package/avro-c/
 F:	package/mosquitto/
 F:	package/python-avro/
 F:	package/redis/
+F:	package/waf/
 
 N:	Trent Piepho <tpiepho@impinj.com>
 F:	package/libp11/

package/waf/waf.hash

@@ -1,3 +1,3 @@
 # Locally computed
-sha1    33d170c738ed8c92dda2945b445272972f558244                          waf-1.9.5
-sha256  101f14e0f47a6410c00b8feda094948516cd3989491c56eb8268907fcd164909  waf-1.9.5
+sha1    d857c29d49848e0fc42e69daa25e0ec2e732ac17                          waf-2.0.19
+sha256  ba63c90a865a9bcf46926c4e6776f9a3f73d29f33d49b7f61f96bc37b7397cef  waf-2.0.19

package/waf/waf.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-WAF_VERSION = 1.9.5
+WAF_VERSION = 2.0.19
 WAF_SOURCE = waf-$(WAF_VERSION)
 WAF_SITE = https://waf.io