feat(configuration): support multiple vaults in the configuration file (#6)

When multiple vaults are added to the configuration file, the script will prompt 
you to select one at runtime

tests/fixtures/broken_config_file.toml

@@ -0,0 +1,6 @@
+["Sample Vault]
+    exclude_paths = [".git", ".obsidian", "ignore_folder"]
+    path          = "tests/fixtures/sample_vault"
+["Test Vault"]
+    exclude_paths = [".git", ".obsidian", "ignore_folder"]
+    path          = "tests/fixtures/test_vault"

tests/fixtures/multiple_vaults.toml

@@ -0,0 +1,6 @@
+["Sample Vault"]
+    exclude_paths = [".git", ".obsidian", "ignore_folder"]
+    path          = "tests/fixtures/sample_vault"
+["Test Vault"]
+    exclude_paths = [".git", ".obsidian", "ignore_folder"]
+    path          = "tests/fixtures/test_vault"

tests/fixtures/sample_vault_config.toml

@@ -1,8 +1,3 @@
-vault = "tests/fixtures/sample_vault"
-
-# folders to ignore when parsing content
-exclude_paths = [".git", ".obsidian", "ignore_folder"]
-
-[metadata]
-    metadata_location = "frontmatter" # "frontmatter", "top", "bottom"
-    tags_location     = "top"         # "frontmatter", "top", "bottom"
+["Sample Vault"]
+    exclude_paths = [".git", ".obsidian", "ignore_folder"]
+    path          = "tests/fixtures/sample_vault"

tests/fixtures/test_vault/ignore_folder/file_to_ignore.md

@@ -8,6 +8,7 @@ tags:
   - ignored_file_tag1
 author: author name
 type: ["article", "note"]
+ignored_frontmatter: ignore_me
 ---
 #inline_tag_top1 #inline_tag_top2
 #ignored_file_tag2

tests/fixtures/test_vault_config.toml

@@ -1,8 +1,3 @@
-vault = "tests/fixtures/test_vault"
-
-# folders to ignore when parsing content
-exclude_paths = [".git", ".obsidian", "ignore_folder"]
-
-[metadata]
-    metadata_location = "frontmatter" # "frontmatter", "top", "bottom"
-    tags_location     = "top"         # "frontmatter", "top", "bottom"
+["Test Vault"]
+    exclude_paths = [".git", ".obsidian", "ignore_folder"]
+    path          = "tests/fixtures/test_vault"