[WFRP4e System] channel until ready

[moo-man]

Channel until ready option rolls one more additional channel test when the spell is already at full CN channelled

https://youtu.be/V8SHxwZVe7c video of the rolls made

From: Perkuns#9523
foundry: 10.290
wfrp4e: 6.2.1
wfrp4e-altdorf: 2.0.2
wfrp4e-archives1: 2.4.1
wfrp4e-archives2: 3.0.0
wfrp4e-core: 3.0.2
wfrp4e-dotr: 2.3.4
wfrp4e-eis: 2.3.4
wfrp4e-empire-ruins: 3.0.1
wfrp4e-horned-rat: 2.0.1
wfrp4e-middenheim: 2.4.2
wfrp4e-owb1: 2.0.1
wfrp4e-pbtt: 2.2.3
wfrp4e-rnhd: 3.0.0
wfrp4e-starter-set: 3.0.0
wfrp4e-ua1: 2.3.2
wfrp4e-ua2: 2.0.0
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