github: Add request retry splitting

[jerry-skydio]

No description provided.

[jerry-skydio]

Reviews in this chain:
└#253 github: Add graphql utility class to contain query fields
　└#254 github: Add request retry splitting
　　└#255 test: Add github tests

[jerry-skydio]

#	head	base	diff	date	summary
0	969328e2	978add51	diff	May 20 17:00 PM	3 files changed, 227 insertions(+), 44 deletions(-)
1	6f8ffda1	550ecf7b	diff	May 21 13:44 PM	2 files changed, 11 insertions(+), 389 deletions(-)
2	34599f2c	3466dcba	rebase	Jun 19 10:47 AM	0 files changed
3	a914ef99	252ff615	rebase	Jun 19 12:49 PM	0 files changed
4	77c6fd52	9645b7ff	rebase	Jun 19 13:17 PM	0 files changed
5	278b0440	262cc29f	rebase	Jun 19 13:24 PM	0 files changed
6	9cd2a65c	07520e54	rebase	Jun 26 10:38 AM	0 files changed