[Lint] Enable various new SwiftLint rules

.swiftlint.yml

@@ -8,24 +8,59 @@ disabled_rules:
   - type_body_length
 
 opt_in_rules:
+  - array_init
   - attributes
   - closure_end_indentation
   - closure_spacing
+  - collection_alignment
   - conditional_returns_on_newline
+  - contains_over_first_not_nil
   - convenience_type
+  - discouraged_object_literal
+  - discouraged_optional_boolean
+  - discouraged_optional_collection
   - empty_count
+  - empty_string
+  - empty_xctest_method
+  - explicit_enum_raw_value
   - explicit_init
+  - extension_access_modifier
+  - fallthrough
   - fatal_error_message
   - first_where
+  - function_default_parameter_at_end
+  - identical_operands
   - implicitly_unwrapped_optional
+  - joined_default_parameter
+  - last_where
+  - legacy_random
+  - literal_expression_end_indentation
+  - lower_acl_than_parent
   - modifier_order
   - multiline_arguments
+  - multiline_function_chains
+  - multiline_literal_brackets
+  - nslocalizedstring_key
   - overridden_super_call
+  - override_in_extension
+  - private_action
   - private_outlet
   - prohibited_super_call
+  - quick_discouraged_call
+  - quick_discouraged_focused_test
+  - quick_discouraged_pending_test
   - redundant_nil_coalescing
+  - sorted_first_last
+  - strict_fileprivate
   - switch_case_on_newline
+  - toggle_bool
+  - unavailable_function
+  - untyped_error_in_catch
+  - unused_import
+  - unused_private_declaration
   - vertical_parameter_alignment_on_call
+  - xct_specific_matcher
+  - yoda_condition
 
 excluded:
   - Carthage