doxygen: new package

Doxygen binary is necessary to generate C++ bindings for libsigrok.

Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-devtools/doxygen/doxygen/0001-build-don-t-look-for-Iconv.patch

@@ -0,0 +1,36 @@
+From f3a6c05e3a8afdac547c6c8176fa6b57636db65c Mon Sep 17 00:00:00 2001
+From: Bartosz Golaszewski <brgl@bgdev.pl>
+Date: Fri, 23 Nov 2018 11:44:56 +0100
+Subject: [PATCH] build: don't look for Iconv
+
+Drop the find_package() for Iconv. CMake is unable to find iconv.h in
+native build but all modern systems supply it as part of the standard
+C library. We don't need this check in meta-openembedded.
+
+Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
+
+Upstream-status: Inappropriate
+- upstream doxygen must build on many architectures, this change is
+  too intrusive for upstream
+---
+ CMakeLists.txt | 4 ----
+ 1 file changed, 4 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index ba105b89..16252247 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -89,10 +89,6 @@ if (sqlite3)
+     find_package(SQLite3 REQUIRED)
+ endif()
+ 
+-find_package(Iconv REQUIRED)
+-include_directories(${ICONV_INCLUDE_DIR})
+-
+-
+ #set(DOXYDOCS ${CMAKE_SOURCE_DIR}/doc CACHE INTERNAL "Path to doxygen docs")
+ set(DOXYDOCS ${PROJECT_BINARY_DIR}/doc)
+ set(ENV{DOXYGEN_DOCDIR} ${DOXYDOCS})
+-- 
+2.19.1
+

meta-oe/recipes-devtools/doxygen/doxygen_1.8.14.bb

@@ -0,0 +1,17 @@
+DESCRIPTION = "Doxygen is the de facto standard tool for generating documentation from annotated C++ sources."
+HOMEPAGE = "http://www.doxygen.org/"
+
+LICENSE = "GPL-2.0"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=b234ee4d69f5fce4486a80fdaf4a4263"
+
+inherit cmake python3native
+
+DEPENDS = "flex-native bison-native"
+
+SRC_URI = "ftp://ftp.stack.nl/pub/users/dimitri/doxygen-${PV}.src.tar.gz \
+           file://0001-build-don-t-look-for-Iconv.patch"
+
+SRC_URI[md5sum] = "41d8821133e8d8104280030553e2b42b"
+SRC_URI[sha256sum] = "d1757e02755ef6f56fd45f1f4398598b920381948d6fcfa58f5ca6aa56f59d4d"
+
+BBCLASSEXTEND = "native"