gnucash maint: [test-balsheet-pnl] add more tests

[Christopher Lam]

Updated	 via  https://github.com/Gnucash/gnucash/commit/5f64c4c6 (commit)
	from  https://github.com/Gnucash/gnucash/commit/ca444251 (commit)



commit 5f64c4c6e458e65d036956f0ba9880ac4a4dcb5f
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Thu Feb 4 21:48:58 2021 +0800

    [test-balsheet-pnl] add more tests
    
    1. modify pricedb to awkward numbers -- this ensures the balance-sheet
    reports are tested with higher precision
    2. tests exchange rate for multicol pnl



Summary of changes:
 .../reports/standard/test/test-balsheet-pnl.scm    | 143 +++++++++++++--------
 1 file changed, 86 insertions(+), 57 deletions(-)