Update to LibConf system, added loading of dynamic libraries (only Linux for now) and some more fixes.

LibConf

@@ -0,0 +1,29 @@
+
+Import('env')
+
+mijin_sources = Split("""
+    source/mijin/async/coroutine.cpp
+    source/mijin/debug/symbol_info.cpp
+    source/mijin/io/stream.cpp
+    source/mijin/memory/data_pool.cpp
+    source/mijin/util/os.cpp
+    source/mijin/types/name.cpp
+    source/mijin/virtual_filesystem/filesystem.cpp
+    source/mijin/virtual_filesystem/stacked.cpp
+""")
+
+env.UnityStaticLibrary(
+    target = env['LIB_DIR']  + '/mijin_sekiei',
+    source = mijin_sources
+)
+
+LIB_CONFIG = {
+    'CPPPATH': [env.Dir('source')],
+    'CPPDEFINES': [],
+    'LIBS': ['mijin_sekiei']
+}
+
+if env['BUILD_TYPE'] == 'debug':
+    LIB_CONFIG['CPPDEFINES'].extend(['MIJIN_DEBUG=1', 'MIJIN_CHECKED_ITERATORS=1'])
+
+Return('LIB_CONFIG')