build: add tt weak dependency

Part of tarantool/tt#286

NO_TEST=third-party dependency
NO_DOC=third-party dependency

(cherry picked from commit 10f7109c)

changelogs/unreleased/no-gh-add-tt-dependency.md

+## feature/build
+
+* Added `tt` weak dependency. `tt` command line utility combines
+  `tarantoolctl` and `cartridge-cli` functionality into one tool.
+  This change is a part of pushing `tt` to public ( tarantool/tt#286 ).

debian/control

@@ -63,7 +63,7 @@ Depends: ${misc:Depends}, adduser, lsb-base,
 # Deps for built-in package manager
 # https://github.com/tarantool/tarantool/issues/2612
  openssl
-Recommends: tarantool-dev, git, build-essential, cmake
+Recommends: tarantool-dev, git, build-essential, cmake, tt
 Description: Tarantool in-memory database - common files
  Tarantool is an in-memory database and Lua application server.
  This package provides scripts to work with tarantool configuration

rpm/tarantool.spec

@@ -130,6 +130,7 @@ Recommends: cmake >= 3.3
 Recommends: make
 Recommends: gcc >= 4.5
 Recommends: gcc-c++ >= 4.5
+Recommends: tt
 %endif
 
 URL: http://tarantool.org