sslsplit: Add source

Submodule src is linked to upstream branch 'develop'.

.gitmodules

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+[submodule "net/sslsplit/sslsplit"]
+	path = net/sslsplit/sslsplit
+	url = git@github.com:droe/sslsplit.git
+	branch = develop
+[submodule "net/sslsplit/src"]
+	path = net/sslsplit/src
+	url = git@github.com:droe/sslsplit.git
+	branch = develop

net/sslsplit/Makefile

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+#
+# Copyright (C) 2016-2018 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=sslsplit
+PKG_VERSION:=0.5.5-tls13
+PKG_RELEASE:=1
+PKG_LICENSE:=BSD-2-Clause
+PKG_LICENSE_FILES:=LICENSE LICENSE.contrib LICENSE.third
+
+PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
+PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
+
+PKG_INSTALL:=1
+
+# Thanks to Adde88 (github.com/adde88)
+PKG_MAINTAINER:=Andreas Nilsen <adde88@gmail.com>
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/sslsplit
+  SECTION:=net
+  CATEGORY:=Network
+  DEPENDS:=+libevent2 +libopenssl +libevent2-openssl +libevent2-pthreads +libnet-1.2.x +libpcap +USE_MUSL:musl-fts
+  TITLE:=Transparent SSL/TLS interception
+  URL:=https://www.roe.ch/SSLsplit
+endef
+
+define Package/sslsplit/description
+  Transparent SSL/TLS interception
+endef
+
+MAKE_FLAGS += prefix=/usr \
+	OSNAME=Linux
+
+define Build/Prepare
+	mkdir -p $(PKG_BUILD_DIR)
+	$(CP) -rf ./src/* $(PKG_BUILD_DIR)/
+endef
+
+define Package/sslsplit/install
+	$(INSTALL_DIR)	$(1)/bin
+	$(INSTALL_DIR)	$(1)/etc/sslsplit
+	$(INSTALL_BIN)	$(PKG_INSTALL_DIR)/usr/local/bin/sslsplit			$(1)/bin/
+	$(INSTALL_CONF) $(PKG_INSTALL_DIR)/usr/local/etc/sslsplit/sslsplit.conf.sample	$(1)/etc/sslsplit/
+endef
+
+$(eval $(call BuildPackage,sslsplit))

net/sslsplit/src

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+Subproject commit dcce1abea1eea3d74d3c8cae3f426c9373f6189e