CS: variety of whitespace fixes

[jrfnl]

[This PR is part of a series to introduce code style checking to the repo]

Fix whitespace issues:

• Don't use space indentation.
• Don't use inline tabs.
• Don't use precision alignment
• No multiple consecutive blank lines.
• One space (or a new line) on either side of a concatenation operator.
• Always have a space (or new line) before and after each operator, with the exception of the boolean not ! and the spread operator.
• No space between the boolean not ! and what it applies to.
  Note: This is the opposite of WPCS, but in line with the majority of uses of the ! operator in this repo.
• Always have a space (or new line) after a comma.
• Don't use horizontal alignment within single line arrays.
• One space between the close parenthesis and the opening curly of function declarations.
• No space on the inside of function call, function declaration, array, control structure or arbitrary parentheses.
  Note: This is the opposite of WPCS, but in line with the majority of code in this repo.
  Also note: for arrays this won't be enforced as there is no sniff available for this, but the current code-base has been fixed where necessary.
• Multi-line function calls should have each parameter on a new line.
• There should be one space between a control structure keyword and its opening parenthesis.
• For multi-part control structures - if/else, try/catch, the next keyword should be on a new line.
  Note: This is the opposite of WPCS, but in line with the majority of code in this repo.
  Also note: This will not be enforced as there is no sniff for it, but is in line with the prevailing code style in the repo.
• End each file with a new line character.

[jrfnl]

Rebased for merge conflicts.

[jrfnl]

Rebased for merge conflicts ;-)