New assert_true and assert_false macros in nu/test.nu.
New assert_true and assert_false macros in nu/test.nu.

spotify/nu,jqk6/nu,gcbeyond/nu,hodgeswt/nu,gcbeyond/nu,hodgeswt/nu,heiko-henrich/nutor,gcbeyond/nu,jsyedidia/nu,nulang/nu,spotify/nu,heiko-henrich/nutor,jqk6/nu,timburks/nu,jqk6/nu,jsyedidia/nu,timburks/nu,alloy/nu,jsyedidia/nu,nulang/nu,jsyedidia/nu,heiko-henrich/nutor,hodgeswt/nu,timburks/nu,nulang/nu,jqk6/nu,gcbeyond/nu,spotify/nu,hodgeswt/nu,spotify/nu,jsyedidia/nu,alloy/nu,heiko-henrich/nutor