remove unnecessary files, rename model.config, use relative dir to libmace root in config

libmace.mri

-create build/lib/libmace_generated.a
-addlib lib/mace/libmace.a
-addlib lib/mace/libmace_prod.a
-addlib bazel-bin/codegen/libgenerated_models.a
-addlib bazel-bin/codegen/libgenerated_opencl_prod.a
-addlib bazel-bin/codegen/libgenerated_tuning_params.a
-save
-end

libmace_local.mri

-create build/lib/libmace_generated.a
-addlib lib/mace/libmace.a
-addlib lib/mace/libmace_prod.a
-addlib bazel-bin/codegen/libgenerated_models.pic.a
-save
-end

mace_tools.py

 #!/usr/bin/env python
 
+# Must run at root dir of libmace project.
 # python tools/mace_tools.py \
 #     --global_config=models/config \
 #     --round=100 \
@@ -178,21 +179,18 @@ def parse_model_configs():
     model_dirs = []
     model_output_map = {}
     if ("models" in config_sections) and (config_parser.items("models")):
-      model_dirs_relative_to_config_str = config_parser.get(
+      model_dirs_str = config_parser.get(
           "models", "DIRECTORIES")
-      model_dirs_relative_to_config_str = model_dirs_relative_to_config_str.rstrip(
+      model_dirs_str = model_dirs_str.rstrip(
           ",")
 
       # Remove repetition element
-      model_dirs_relative_to_config_str_list = list(
-          set(model_dirs_relative_to_config_str.split(",")))
-
-      for d in model_dirs_relative_to_config_str_list:
-        model_dir = os.path.join(global_config_dir, d)
-        model_dirs.append(model_dir)
+      model_dirs = list(
+          set(model_dirs_str.split(",")))
 
+      for model_dir in model_dirs:
         # Create output dirs
-        model_output_dir = os.path.join(FLAGS.output_dir, d)
+        model_output_dir = os.path.join(FLAGS.output_dir, model_dir)
 
         model_output_map[model_dir] = model_output_dir
     else:

model.config

-; [models]
-; DIRECTORIES = mobile_net/64/
-
-[configs]
-; If exists 'models' section, this section will be global variable to sub models
-; Otherwise this is the model's config and must be put in the same dirs with model.pb
-TF_INPUT_NODE=input
-TF_OUTPUT_NODE=output
-MODEL_TAG=mobile_net
-INPUT_SHAPE=1,64,64,3
-OUTPUT_SHAPE=1,64,64,2
-RUNTIME=gpu
-TUNING_OR_NOT=1
-ANDROID_ABI=armeabi-v7a ; Or 'arm64-v8a'
-LIMIT_OPENCL_KERNEL_TIME=0
-DSP_MODE=0 ; used only for dsp