Math. Fix the translted greek letters.

This is related to issue:
https://github.com/ArthurSonzogni/Diagon/issues/6

test/Math_style=ASCII/variable/input

@@ -7,3 +7,54 @@ a123456789°à@çè|#~#&
 2_2m
 
 2é8fsdmoiuuç
+
+Alpha
+alpha
+Digamma
+digamma
+Kappa
+kappa
+Omicron
+omicron
+Upsilon
+upsilon
+Beta
+beta
+Zeta
+zeta
+Lambda
+lambda
+Pi
+pi
+Phi
+phi
+Gamma
+gamma
+Eta
+eta
+Mu
+mu
+Rho
+rho
+Chi
+chi
+Delta
+delta
+Theta
+theta
+Nu
+nu
+Sigma
+sigma
+Psi
+psi
+Epsilon
+epsilon
+Iota
+iota
+Xi
+xi
+Tau
+tau
+Omega
+omega

test/Math_style=ASCII/variable/output

@@ -8,3 +8,54 @@ a123456789°à@çè|#~#&
  2m                 
                     
 2é8fsdmoiuuç        
+                    
+Α                   
+α                   
+Ϝ                   
+ϝ                   
+Κ                   
+ϰ                   
+Ο                   
+ο                   
+Υ                   
+υ                   
+Β                   
+β                   
+Ζ                   
+ζ                   
+Λ                   
+λ                   
+Π                   
+π                   
+ϕ                   
+φ                   
+Γ                   
+γ                   
+Η                   
+η                   
+Μ                   
+μ                   
+ρ                   
+ϱ                   
+Χ                   
+χ                   
+Δ                   
+δ                   
+θ                   
+ϑ                   
+Ν                   
+ν                   
+σ                   
+ς                   
+Ψ                   
+ψ                   
+ϵ                   
+ε                   
+Ι                   
+ι                   
+Ξ                   
+ξ                   
+Τ                   
+τ                   
+Ω                   
+ω