Added SModule and dependencies.json for S++ 2.0 support.

SModule

@@ -0,0 +1,40 @@
+
+import json
+
+
+Import('env')
+
+mijin_sources = Split("""
+    source/mijin/async/coroutine.cpp
+    source/mijin/debug/stacktrace.cpp
+    source/mijin/debug/symbol_info.cpp
+    source/mijin/io/process.cpp
+    source/mijin/io/stream.cpp
+    source/mijin/util/os.cpp
+    source/mijin/types/name.cpp
+    source/mijin/virtual_filesystem/filesystem.cpp
+    source/mijin/virtual_filesystem/stacked.cpp
+""")
+
+with open('dependencies.json', 'r') as f:
+  dependencies = env.DepsFromJson(json.load(f))
+
+cppdefines = []
+if env['BUILD_TYPE'] == 'debug':
+    cppdefines += ['MIJIN_DEBUG=1', 'MIJIN_CHECKED_ITERATORS=1']
+
+
+lib_mijin = env.UnityStaticLibrary(
+    target = env['LIB_DIR'] + '/mijin',
+    source = mijin_sources,
+    dependencies = dependencies,
+    CPPDEFINES = list(env['CPPDEFINES']) + cppdefines
+)
+
+LIB_CONFIG = {
+    'CPPPATH': [env.Dir('source')],
+    'CPPDEFINES': cppdefines,
+    'LIBS': [lib_mijin]
+}
+
+Return('LIB_CONFIG')

dependencies.json

@@ -0,0 +1,6 @@
+{
+  "libbacktrace":
+  {
+    "condition": "compiler_family == 'gcc' or compiler_family == 'clang'"
+  }
+}