Add --delete for interactive removal of entries (#698)

* Add --delete for interactive removal of entries
* Add inquirer dependency for fancy prompting
* Fix some minor style issues
* Fix #434 
* Use PyInquirer instead of inquirer for Windows compatibility
* Add WIP (broken) test
* Change deletion interface to be more basic
* Update environment.py

Co-authored-by: Jonathan Wren <jonathan@nowandwren.com>

features/data/configs/deletion.yaml

@@ -0,0 +1,12 @@
+default_hour: 9
+default_minute: 0
+editor: ""
+encrypt: false
+highlight: true
+journals:
+  default: features/journals/deletion.journal
+linewrap: 80
+tagsymbols: "@"
+template: false
+timeformat: "%Y-%m-%d %H:%M"
+indent_character: "|"

features/data/journals/deletion.journal

@@ -0,0 +1,5 @@
+[2019-10-29 11:11] First entry.
+
+[2019-10-29 11:11] Second entry.
+
+[2019-10-29 11:13] Third entry.