add snippet for each track, clarify compat notes

snippets/decant

@@ -0,0 +1,13 @@
+# -*- mode: snippet -*-
+# name: decant
+# group: pigsnose
+# key: decant
+# expand-env: (yas-indent-line fixed)
+# --
+pn1print
+pn1qs
+pn1drumintro
+pn1drum
+pn1jbass
+pn2ql
+pn1mons

snippets/raise

@@ -0,0 +1,16 @@
+# -*- mode: snippet -*-
+# name: raise
+# group: pigsnose
+# key: raise
+# expand-env: (yas-indent-line fixed)
+# --
+pn2ql
+pn2casio
+pn2drumintro
+pn2mons
+pn2bass
+pn2drum
+pn1qs
+pn1jbass
+pn2baa
+pn2drumoutro

snippets/savour

@@ -0,0 +1,14 @@
+# -*- mode: snippet -*-
+# name: savour
+# group: pigsnose
+# key: savour
+# expand-env: (yas-indent-line fixed)
+# --
+pn3drum
+pn3arm
+pn2mons
+pn1qs
+pn2bass
+pn1jbass
+pn1print
+pn2sheep