Remove lifetime mess, replace a lot of code with Arc instead of borrows.

This cleans up the codebase massively, and allows me to maintain some semblance of sanity.

src/static_data/species_data/species.rs

@@ -1,3 +1,5 @@
+use std::sync::Arc;
+
 use hashbrown::{HashMap, HashSet};
 
 use crate::static_data::Form;
@@ -21,7 +23,7 @@ pub struct Species {
     /// uncatchable.
     capture_rate: u8,
     /// The forms that belong to this Pokemon.
-    forms: HashMap<StringKey, Form>,
+    forms: HashMap<StringKey, Arc<Form>>,
     /// The arbitrary flags that can be set on a Pokemon for script use.
     flags: HashSet<StringKey>,
 }
@@ -46,7 +48,7 @@ impl Species {
         flags: HashSet<StringKey>,
     ) -> Species {
         let mut forms = HashMap::with_capacity(1);
-        forms.insert_unique_unchecked(get_default_key(), default_form);
+        forms.insert_unique_unchecked(get_default_key(), Arc::new(default_form));
         Species {
             id,
             name: name.clone(),
@@ -80,7 +82,7 @@ impl Species {
         self.capture_rate
     }
     /// The forms that belong to this Pokemon.
-    pub fn forms(&self) -> &HashMap<StringKey, Form> {
+    pub fn forms(&self) -> &HashMap<StringKey, Arc<Form>> {
         &self.forms
     }
     /// The arbitrary flags that can be set on a Pokemon for script use.
@@ -90,16 +92,16 @@ impl Species {
 
     /// Adds a new form to the species.
     pub fn add_form(&mut self, id: StringKey, form: Form) {
-        self.forms.insert(id, form);
+        self.forms.insert(id, Arc::new(form));
     }
 
     /// Gets a form by name.
-    pub fn get_form(&self, id: &StringKey) -> Option<&Form> {
+    pub fn get_form(&self, id: &StringKey) -> Option<&Arc<Form>> {
         self.forms.get(id)
     }
 
     /// Gets the form the Pokemon will have by default, if no other form is specified.
-    pub fn get_default_form(&self) -> &Form {
+    pub fn get_default_form(&self) -> &Arc<Form> {
         self.forms.get(&get_default_key()).unwrap()
     }