[nostalgia/core] Get building with GLFW (it has a better Conan package than SDL)

conanfile.py

@@ -1,9 +1,8 @@
 from conans import ConanFile, CMake
 
 class NostalgiaConan(ConanFile):
-    settings = "os", "compiler", "build_type", "arch"
-    requires = "jsoncpp/1.9.4", "sdl2/2.0.14@bincrafters/stable"
-    generators = "cmake", "cmake_find_package", "cmake_paths"
-    #default_options = {
-    #    "sdl2:nas": False
-    #}
+    settings = 'os', 'compiler', 'build_type', 'arch'
+    requires = 'jsoncpp/1.9.4', 'glfw/3.3.4'
+    generators = 'cmake', 'cmake_find_package', 'cmake_paths'
+    default_options = {
+    }