New Filter plugin from_csv (#2037)

* Added from_csv filter and integration tests

* Cleaning up whitespace

* Adding changelog fragment

* Updated changelog fragment name

* Removed temp fragment

* Refactoring csv functions Part 1

* Syncing refactored csv modules/filters

* Adding unit tests for csv Module_Util

* Updating changelog fragment

* Correcting whitespace in unit test

* Improving changelog fragment

Co-authored-by: Felix Fontein <felix@fontein.de>

* Update changelogs/fragments/2037-add-from-csv-filter.yml

Co-authored-by: Felix Fontein <felix@fontein.de>

plugins/filter/from_csv.py

@@ -0,0 +1,49 @@
+# -*- coding: utf-8 -*-
+
+# Copyright: (c) 2021, Andrew Pantuso (@ajpantuso) <ajpantuso@gmail.com>
+# Copyright: (c) 2018, Dag Wieers (@dagwieers) <dag@wieers.com>
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
+from ansible.errors import AnsibleFilterError
+from ansible.module_utils._text import to_native
+
+from ansible_collections.community.general.plugins.module_utils.csv import (initialize_dialect, read_csv, CSVError,
+                                                                            DialectNotAvailableError,
+                                                                            CustomDialectFailureError)
+
+
+def from_csv(data, dialect='excel', fieldnames=None, delimiter=None, skipinitialspace=None, strict=None):
+
+    dialect_params = {
+        "delimiter": delimiter,
+        "skipinitialspace": skipinitialspace,
+        "strict": strict,
+    }
+
+    try:
+        dialect = initialize_dialect(dialect, **dialect_params)
+    except (CustomDialectFailureError, DialectNotAvailableError) as e:
+        raise AnsibleFilterError(to_native(e))
+
+    reader = read_csv(data, dialect, fieldnames)
+
+    data_list = []
+
+    try:
+        for row in reader:
+            data_list.append(row)
+    except CSVError as e:
+        raise AnsibleFilterError("Unable to process file: %s" % to_native(e))
+
+    return data_list
+
+
+class FilterModule(object):
+
+    def filters(self):
+        return {
+            'from_csv': from_csv
+        }