Rename files to more familiar convention.

apic.go

diff --git a/api_c.go b/apic.go
similarity index 100%
rename from api_c.go
rename to apic.go

emitterc.go

diff --git a/emitter_c.go b/emitterc.go
similarity index 100%
rename from emitter_c.go
rename to emitterc.go

parserc.go

diff --git a/parser_c.go b/parserc.go
similarity index 100%
rename from parser_c.go
rename to parserc.go

readerc.go

diff --git a/reader_c.go b/readerc.go
similarity index 100%
rename from reader_c.go
rename to readerc.go

scannerc.go

diff --git a/scanner_c.go b/scannerc.go
similarity index 100%
rename from scanner_c.go
rename to scannerc.go

writerc.go

diff --git a/writer_c.go b/writerc.go
similarity index 100%
rename from writer_c.go
rename to writerc.go

yamlh.go

diff --git a/yaml_h.go b/yamlh.go
similarity index 100%
rename from yaml_h.go
rename to yamlh.go

yamlprivateh.go

diff --git a/yaml_private_h.go b/yamlprivateh.go
similarity index 100%
rename from yaml_private_h.go
rename to yamlprivateh.go