[Move] .\utils\momstrat to .\momstrat

Signed-off-by: Oleg Komarov <o.komarov11@imperial.ac.uk>
[Minor] adapting to tables and poolStartup
[Change] sp500intraday: accepts pathdata and freq inputs

Signed-off-by: Oleg Komarov <o.komarov11@imperial.ac.uk>
[Change] sampleData: factored into function

Signed-off-by: Oleg Komarov <o.komarov11@imperial.ac.uk>
[Change] beta estimation, factored into function #01

Signed-off-by: Oleg Komarov <o.komarov11@imperial.ac.uk>