Added support for the fish shell language

Author: Phundrak

Diff for: resources/fish.ascii

@@ -0,0 +1,15 @@
+{0}                 ___
+{0}  ___======____=-{1}-{0}-=)
+{0}/T            \_{1}--={0}==)
+{0}[ \ ({1}0{0})   \~    \_{1}-={0}=)
+{0} \      / )J~~    \{1}-={0})
+{0}  \\___/  )JJ~{1}~~{0}   \)
+{0}   \_____/JJJ~~{1}~~{0}    \
+{0}   / \  {1}, \{0}J~~~{1}~~{0}     \
+{0}  (-{1}\){0}\=|{1}\\\{0}~~{1}~~{0}       L_{1}_
+{0}  (\\)  ({1}\{0}\\)_           {1}\==__
+{0}   \V    \\\) ===_____   {1}\\\\{0}\\
+{0}          \V)     \_) \\{1}\\JJ\{0}J\)
+{0}                      /J{1}\J{0}T\JJJJ)
+{0}                      (JJJ| \UUU)
+{0}                       (UU)

Diff for: src/language.rs

@@ -23,6 +23,7 @@ pub enum Language {
     Elixir,
     Elm,
     Erlang,
+    Fish,
     Forth,
     #[strum(serialize = "fortran")]
     FortranModern,
@@ -80,6 +81,7 @@ impl std::fmt::Display for Language {
             Language::Elixir => write!(f, "Elixir"),
             Language::Elm => write!(f, "Elm"),
             Language::Erlang => write!(f, "Erlang"),
+            Language::Fish => write!(f, "Fish"),
             Language::Forth => write!(f, "Forth"),
             Language::FortranModern => write!(f, "Fortran"),
             Language::FSharp => write!(f, "FSharp"),
@@ -138,6 +140,7 @@ impl From<tokei::LanguageType> for Language {
             tokei::LanguageType::Elixir => Language::Elixir,
             tokei::LanguageType::Elm => Language::Elm,
             tokei::LanguageType::Erlang => Language::Erlang,
+            tokei::LanguageType::Fish => Language::Fish,
             tokei::LanguageType::Forth => Language::Forth,
             tokei::LanguageType::FortranModern => Language::FortranModern,
             tokei::LanguageType::FSharp => Language::FSharp,
@@ -195,6 +198,7 @@ impl Language {
             Language::Elixir => include_str!("../resources/elixir.ascii"),
             Language::Elm => include_str!("../resources/elm.ascii"),
             Language::Erlang => include_str!("../resources/erlang.ascii"),
+            Language::Fish => include_str!("../resources/fish.ascii"),
             Language::Forth => include_str!("../resources/forth.ascii"),
             Language::FortranModern => include_str!("../resources/f90.ascii"),
             Language::FSharp => include_str!("../resources/fsharp.ascii"),
@@ -251,6 +255,7 @@ impl Language {
             Language::Elixir => vec![Color::Magenta],
             Language::Elm => vec![Color::BrightBlack, Color::Green, Color::Yellow, Color::Cyan],
             Language::Erlang => vec![Color::BrightRed],
+            Language::Fish => vec![Color::Red, Color::Yellow],
             Language::Forth => vec![Color::BrightRed],
             Language::FortranModern => vec![
                 Color::BrightWhite,
@@ -373,6 +378,7 @@ fn get_all_language_types() -> Vec<tokei::LanguageType> {
         tokei::LanguageType::Elisp,
         tokei::LanguageType::Elm,
         tokei::LanguageType::Erlang,
+        tokei::LanguageType::Fish,
         tokei::LanguageType::Forth,
         tokei::LanguageType::FortranModern,
         tokei::LanguageType::FSharp,