Add @cappyzawa to project members

Following the community membership process described in PROCESS.md.
Application: #450

Signed-off-by: cappyzawa <[email protected]>

Author: cappyzawa

PROJECT-MEMBERS.md

@@ -15,3 +15,4 @@ who are not maintainers (yet).
 | Daniel Holbach  | @dholbach      | Daniel Holbach  | Independent  | PR #302     |
 | Luke Mallon     | @nalum         | nalum           | Independent  | Issue #339  |
 | Steve Wade      | @swade1987     | Steve Wade      | Independent  | Issue #390  |
+| Shu Kutsuzawa   | @cappyzawa     | cappyzawa       | Independent  | Issue #450  |